All your profile and book's content is based on the insights gathered from the LX survey. To understand more about the science behind LX, please download the free ebook 'The Theory of Everyone'.

First of all, the best thing to do is to ask someone who knows you well and whom you trust. They might be able to confirm whether what you read in the profile or book is in fact like you or not. Only do that if you are ready for being truly self-aware! Remember the Speed Profile is only based on 10 questions and a simplified version of the full LX AI. If you do not find the Speed Profile a good fit we suggest you try answering it again in a different mood and from an alternate 'work' or 'personal' perspective.

Nope. Anyone who wants to better work with others on a team or be a stronger leader will find the book beneficial. Professional sports stars, YouTubers and charity volunteers have all found it insightful. Anyone who is looking for a job, including students, or may be considering a career change, is likely to find the 'Your Work Life' book very valuable.

Everyone. It is important to understand that it is not a journal or a task management efficiency tool. It has been designed using the core principles behind Google's OKR system, and aims to help anyone to achieve their life goals.

Each book clearly outlines the recommended next steps to take on your journey to become your best self.

Nope. If you have got 'The Book of You', you can upgrade to the 'LX System' without answering any more questions. If you have only answered the 'LX Speed Survey', you will need to separately answer the full 'LX AI Survey' to get an LX book.

We do not recommend doing an LX survey for anyone under the age of 16.

You need to ask the person to show their book to you! We take privacy very seriously and so do not share anyone's book or results profile. To learn more please read our Privacy Policy.

Yes absolutely!

The free LX Speed Survey is a VERY VERY simplified version of the full LX System and LX AI Survey. Despite this people find the Speed Profile to be accurate and useful, and so we decided to give it to everyone in the world for free. We estimate that the full LX AI survey is well over 10x the accuracy of the LX Speed Survey. The three LX System books at over 400 pages in total are over 10x the breath and depth of content of the free Speed Survey profile.

The LX Speed Survey is a VERY VERY simplified version of LX's approach. The results in your book are much more accurate, and will have been validated in many more ways.

The LX System creates a unique personality profile for everyone - no more typing into 4,9,12, 16, 49 etc. profiles. Just like DNA, LX builds up one's personality based on 1000s of distinct words and then clusters them into 36 character traits (strengths). The various combinations and permutations of these character traits allows LX to create truly unique and fine-tuned profiles. The system also continually adapts and evolves, and so over time the conversation, profiling algorithm and book content will all improve.

The Theory of Everyone explains the system and its applications in detail. That said, the books have all the relevant highlights of the theory so you don't need to read The Theory of Everyone in order to understand and enjoy your own book.

Ultimately only you can tell how much your own book fits, and so we believe that the LX 'Net Promoter Score' (NPS) is the best indication of our profiles and books success. Our NPS score is currently over 80%. When we try to measure it we find that most people who have completed the LX AI survey feel it is about 85-95% accurate. Results are slightly lower for the short and more simple LX Speed Survey, and consistently higher when people invest time to take the extended elements of the full LX AI survey. More generally the LX System uses an approach that is similar to the most established lexicographic models that psychologists use for personality profiling coupled with more engineering centric A-B testing techniques. This enables statistical testing, validation and improvement of the system. Now, every LX AI survey profile is validated against 17 independent personality assessments to ensure consistency and coherent results. For example if you answer the results randomly, or a nonsensical manner, or extremely abnormally (e.g. overtly 'fake bad' or 'fake good'), the AI highlights the issue and will decide it cannot write a coherent book for you. Finally, if you do not find the LX AI survey is managing to generate a reasonable picture of your personality by the end of survey we offer you full money back refund. There are not many other companies that do that, so what have you got to lose?

Unlike other assessments, LX creates a unique personality profile instead of typing people into a hanful categories. Everyone is unique even if there are similarities between people. This approach is at the core of LX. Because LX builds up everyone's personality 'DNA' based on 1000s of distinct individual words, and then clusters them into 36 character traits (strengths), the algorithm is also capable of creating indicative results of all the most well-know personality assessments. These results are all captured in The Book of You.

No. The LX System is proprietary and independent of any existing personality assessments or tools.

No human is involved in your conversation with LX. No human writes or edits your LX book. And currently no internationally recognized coaching or counseling organization certifies non-humans... yet!

LX created the LX System and the algorithm behind its personality profiling and conversation. LX does not seek publicity nor fame. The work has been the greatest intellectual challenge of their life, and being able to give it to the world to help others is the reward itself.

Not at all. The LX AI survey dynamically adapts to you and your answers.

Yes, the LX Speed Survey produces a free Profile for you. The full LX AI survey is only available when you purchase a customized LX book.

There are 25 core question screens in the LX AI survey. This core survey can be extended by a further optional set of questions if you feel you want to increase the accuracy, breath and depth of the survey.

Great question! The short answer is that it depends on what you mean... :-) It varies depending on how you define: + Your 'personality' -- some people are more complex than others + How you count a 'question' -- some questions give more data-points than others, and what about the things I can tell about you depending on how fast you answer some questions, or when you completing your survey, etc... + What you consider to be 'accurate' -- everyone has a different perspective of accurate Generally though LX AI needs 8-12 decent response signals to narrow down on the core aspects of most people's personality profile. In the 25 question survey, the following 10-15 question sets are then used to validate and deepen this initial hypothesized understanding. This forms the basis of the core LX AI 25 question sets. Of course LX AI also uses some input signals that do not come directly from the question sets, like for example how you respond to suggested personality profiles, but also including things like how fast you answer questions. Even if a person retakes the LX AI survey using a different name and email address, and of course gets a different set of questions and so gives a different set of answers, LX AI is very good at spotting the 'duplicate' individual. However LX AI does not reuse a person's prior answers or profile to produce the subsequent 'duplicate' profile. The latest profile is always used to produce LX books. Some people will still not identify with the proposed profile after 25 questions. While others will but be happy to answer more questions so that LX AI can broaden and deepen its understanding and hence give an even better personality profile. The next batch of optional question sets has been designed to accommodate these two user groups. After 38 questions LX AI in more than 99% of cases is accepted to produce 'accurate' profiles of an individual's core personality. For the less than 1% of people who do not feel it does the last set of 12 question groups has been designed to understand anyone's character in a very fine level of detail (i.e. over 1000 separate inidvidual character trait metrics, and simulation of 17 very established personality models for validity checking). Of course some of the 99% of people that feel LX AI is accurate after 25 or 38 questions still want to do these questions as well... which is perfectly awesome as well. Overall this modern, highly innovative and inteligently adaptive approach enables LX AI to produce the most comprehensive and accurate personality profiles available online today. Of course it should be noted that LX AI uses modern techniques in data processing and book production as well that combine with the survey to further enhance the results. The LX Speed Survey takes less questions, but is nowhere near as 'accurate'. It also uses slightly different approaches to narrow down and define a person's personality.

The LX books contain the same, and indeed more, content as that summary profile. Sometimes the precise content does not match as LX does further non-realtime analysis after your survey is complete to further refine its personality model and profiling.

If you completed your LX AI survey within the last 12 months you do not need to repeat it to get your book. If you completed your survey more than 12 months ago, you will need to repeat the survey.

Yes absolutely. We find this is rarely the case as the LX AI survey is designed to learn from your responses and create the profile that you can identify with. It is also worth mentioning that the real-time profile summary at the end of the LX AI survey is less accurate than what you will see in your actual LX books. This is because the AI algorithm that writes your books is more complex and thorough than the real-time AI algorithm used during your survey.

No. Each LX AI survey session is unique to the device it was started on.

The simple answer is, you can't go back. The survey is designed in a way to capture whatever comes to mind first, and then adapt accordingly. In life, you don't have the opportunity to go back and change something you said to someone. :-) You can restart your survey, and I have answered how to do that below.

If you have started your LX AI survey in an 'incognito' window we cannot associate a 'cookie' with your answers and so if you close the browser tab before you complete the survey we have no way of automatically bringing you back to the point you left off. You can answer the full LX AI survey in 'incognito' mode, but make sure you complete it in one session.

The LX AI survey uses cookies to automatically save your progress. If you want to restart your survey before you have completed it, technically you should delete your LX AI web browser cookie. However that gets a bit technical... Perhaps a simpler alternative is that you just complete the LX AI survey on another device, like your phone or tablet if you started it originally from your computer. Alternatively you can start the LX AI survey from an 'incognito' browser window. However be careful doing this as if you close that 'incognito' window before you finish the survey there is no way we can automatically bring you back to the same place in the survey that you closed the it. So you can complete the survey in an 'incognito' browser winder, but you have to do it in one session. Of course once you have completed an LX AI survey you can always come back and complete a new one.

Your most recent LX AI survey responses are always used to produce your book.

Once you have completed the LX AI survey, it is not possible to re-open your session with the real-time AI. If LX AI did not recommend answering more questions, you do not really need to do that in order to get a great LX book. If LX AI recommended answering more questions, but you opted out, unfortunately you will have to complete a brand new survey. This is possible by contacting us, unless your book has already been produced.

Unfortunately for privacy and security reasons we cannot share any personal information with somebody who cannot access the email that was used to complete the LX AI survey. If you want to purchase any customized LX books you will need to repeat your LX AI survey using an email address you do have access to.

The LX Speed Survey is a VERY VERY simplified version of the full LX AI Survey. Many people find it accurate and useful and so we have decided to give it to the world for free. It is available from the www.lx-ai.com home page and also directly at bit.ly/LX-Speed-Profile. As a guide we estimate the full LX AI survey is 10x more accurate than the LX Speed Survey. What's more the Speed Survey profile is ~40 pages long, compared to the full LX System of three books which is about ~400 pages long in total.

Yes and no. The LX Speed Survey uses the same underlying theory at the LX AI Survey. However the real-time results in the Speed Survey are not produced by the same AI or precisely in the same manner as the full LX AI Survey and are at least a factor of 10 less accurate and comprehensive. Over 80% of people who complete the LX Speed Survey still find that it describes them 'well' or 'very well'.

No. Currently we only offer 'The Book of You' if you complete the LX AI survey. The full LX AI can produce a full 'Book of You' using just your Speed Survey results, but we are not happy enough with the accuracy yet to offer this as a complete product.

Simple. Purchase as many gift vouchers as you need. After the purchase confirmation, you will receive the Gift Vouchers Access codes that you can then distribute to your team. When they complete their LX AI survey they enter this code to get their Book.

Please visit our LX Services page to learn more.

Yes. Please visit our LX Services pages for more information.

You should ask them! We take privacy seriously and therefore we cannot share details of people's books with anyone else. Please read our Privacy Policy if you wish to learn more. LX offers team building services which you may be interested in. Check then out on our LX Services pages.

No. One of the founding principles of LX is that its technology and data should only be used for personal development and not corporate hiring and firing. This means that LX does not sell assessments to corporates for their HR departments direct usage of results. If a business truly cares about its people's development, they can of course gift their team LX profiles and books. Then they can engage individually on how they can help them become their best self. If you would like to learn more about how LX can help with increasing 'leader', 'team' or 'employee' performance and happiness, please see our LX Services page.

Yes. Please see our LX Services page.

Not for individuals. LX aims to soon provide a free online directory of coaches who would be able to help. LX does offer business teams and executive leaders services that include debriefing sessions as part of wider programs.

For all media enquiries, please email us at hello@lx-ai.com.

It is designed to be a straight-forward step-by-step process. If you need help thinking through what your life goals are, we would recommend you get the LX System and read through The Book of You and your Circle of Life first.

Absolutely if you wish. Just purchase a Gift Voucher and share it with them. When they get their book you can use that as a great catalyst for your conversations. LX also provides all the main personality test results so that will make it easier to work with your specific certification.

LX has been designed so you do not need to be certified in order to use the system, or indeed have any specialist psychology or personality typing knowledge. LX does work with qualified coaches to provide some services to businesses. Please look at the LX Services pages for more information.

Please contact hello@lx-ai.com if you have any customer services questions.

For any customer services questions please email hello@lx-ai.com

Just order one! All we need to do is verfiy it is really you, and then we can reprint your book for you. Unfortunately we cannot change any commentary or results in your reprinted book to the answers you want though!

We give a 10% discount (exc P&P) on all orders over £1000. If you are a business that wants to order more than 100 books please contact us directly via hello@lx-ai.com for special pricing and distribution arrangements.

Yes. Simply purchase the upgrade or print you want through the site. For security and privacy reasons we will have to email both you and the original LX AI survey respondent to confirm they consent.

Because they include some default packaging and postage costs. This is done so that the person who is getting the gift does not need to pay for anything extra.

There are two reasons for this. Firstly most often the LX AI survey's are not completed at the same time, and as we produce and ship books as quickly as possible we do not want to wait for the last person in the batch to complete the survey. Secondly, and perhaps more importantly, given the personalized nature of the books, for security and privacy reasons we have decided to package and address each book separately. This is especially important for people who are having their book delivered to their work or family address.

At the moment, you can only purchase the books online on our website.

If you have not done your survey within the last 6-12 months we recommend that you retake the LX AI survey. This is not because your personality is likely to have changed that much (although your life situation might have), but more because LX continually evolves and improves and so your results and book will likely be even better with a more recent set of survey results.

Yes, the time limit is 12 months from the date you completed your LX AI survey.

Unfortunately not. Our secure print services are only set-up to produce and distribute the LX System in three book packages.

No. These books are only sold as part of the LX System package.

No you cannot pre-order it, but if you email us at hello@lx-ai.com we will notify you when it launches.

Please click on 'unsubscribe' in the email you receive from LX.