# Best non-fiction books to read first, by what you want to learn > Five non-fiction books to start with, chosen by the question you want answered: time, money, history, decisions and medical ethics, with reading time and who should skip each. Canonical: https://lucernel.com/best/best-nonfiction-books Last updated: 2026-10-13 Type: Best of. Publisher: Lucernel. ## Short answer No single book is the best, so choose by the question you want answered. For a first book we suggest Four Thousand Weeks or The Psychology of Money: both are under 300 pages, about five and a half hours of reading. Pick The Immortal Life of Henrietta Lacks for a true story about science and ethics, Sapiens for the long view of history and Thinking, Fast and Slow for how your mind decides. - **Choose this if:** Read a full book when the question matters to you and you can give it a few hours over a couple of weeks. - **Choose the other option if:** Try short lessons first with IQumi when you are not sure a book is for you; they show an author’s idea in a minute, and they never replace the book. ## The picks ### 1. [Four Thousand Weeks, by Oliver Burkeman](https://www.oliverburkeman.com/fourthousandweeks) Best for anyone tired of productivity advice. About 280 pages, roughly 5 h 24 min Burkeman starts from a plain number: if you live to 80, you have just over 4,000 weeks. The publisher’s page describes it as a guide to embracing your limits instead of trying to do the impossible, and to getting meaningful things done within them. Good: - The shortest on the list - One clear idea you can test the same week Watch out for: - Gives a way of thinking, not a system or a list of steps ### 2. [The Psychology of Money, by Morgan Housel](https://www.harriman-house.com/psychologyofmoney) Best for understanding why people do what they do with money. About 288 pages, roughly 5 h 33 min The book argues that doing well with money depends less on what you know than on how you behave. It makes the case through 19 short stories rather than formulas. Good: - Short chapters you can read one at a time - About behavior, so no finance background is needed Watch out for: - A way to think about money, not a plan with numbers for your own budget ### 3. [The Immortal Life of Henrietta Lacks, by Rebecca Skloot](https://rebeccaskloot.com/the-immortal-life/) Best for a true story about science, race and medical ethics. About 336 pages, roughly 6 h 28 min Henrietta Lacks was a poor tobacco farmer whose cells, taken without her knowledge in 1951, became one of the most important tools in medicine. The author’s page calls the book a story of the collision between ethics, race and medicine, and of a daughter consumed with questions about the mother she never knew. Good: - A narrative, so it reads like a story rather than a lecture - Puts the science and the ethics in one human story Watch out for: - Not a how-to book; you take away questions, not steps ### 4. [Sapiens, by Yuval Noah Harari](https://www.ynharari.com/book/sapiens/) Best for the long view of human history. About 456 pages, roughly 8 h 47 min Harari argues that Homo sapiens rules the world because it is the only animal that can believe in things that exist purely in its own imagination, such as gods, states, money and human rights. He retells the history of our species from that starting point. Good: - Retells the history of the species in one narrative - Wide sweep gives you a map of many topics to read on Watch out for: - Covers a very long span, so each topic gets a short treatment - Long enough to take weeks at 20 minutes a day ### 5. [Thinking, Fast and Slow, by Daniel Kahneman](https://us.macmillan.com/books/9780374533557/thinkingfastandslow/) Best for understanding how your mind makes judgments and mistakes. About 528 pages, roughly 10 h 10 min Kahneman describes two systems of thought, a fast intuitive one and a slower deliberate one. He says systematic errors, which he calls biases, recur predictably in particular circumstances, and he wants readers to have words for them. Good: - A vocabulary for talking about decisions with others - Its author won the Nobel Prize in Economics, per the publisher’s page Watch out for: - The longest on the list How we chose: We picked five books that answer five different questions, so the list is not a flat top 100, and ranked them from shortest to longest, because the first book you finish matters most. Habit and focus books are left to our best self-help books list. Descriptions come from each author’s or publisher’s own page, and page counts from Open Library, which lists the median page count across editions, so your edition will differ. Reading time is pages times 275 words a page, divided by 238 words a minute, the average silent reading speed for adult non-fiction in a 2019 review of 190 studies. Descriptions are the authors’ and publishers’, not our own review. IQumi is made by Lucernel, the publisher of this site, and is not one of the picks. ## Start with the question, not the list A list of the best books ever written does not help a first-time reader, because a book you do not need is a book you will not finish. Ask what you want to understand: your time, your money, how you decide, how medicine treats people or where people came from. This is our own advice: name the question in one sentence, pick the matching book above, and read the first chapter before you decide to keep going. If it does not hold you in a chapter, swap it for another. ## How long each book takes Adults read English non-fiction silently at about 238 words per minute on average, according to Marc Brysbaert’s 2019 review of 190 studies with 18,573 participants. For most adults the range is 175 to 300 words per minute. Using 275 words a page as our own estimate, a 300-page book takes about 5 hours 47 minutes. At 20 minutes a day that is about 18 days, and a 528-page book takes about 31 days. Your own pace will vary. ## Who should skip which pick Skip Four Thousand Weeks if you want a step-by-step system, because it argues for a change of outlook instead. Skip The Psychology of Money if you want specific investing instructions, since the book is about behavior. Skip The Immortal Life of Henrietta Lacks if you want a how-to book; you take away questions, not steps. Skip Sapiens or Thinking, Fast and Slow for now if you want something short. These are our own suggestions based on the length and descriptions above. ## A mix on purpose The five cover two short books on how to think about time and money, a true story, a history and a book about psychology. Our advice: do not read five books that answer the same question. A history or a true story changes the pace. For books on habits and focus, see our best self-help books, and for books you can finish in a weekend, our short non-fiction list. ## Try the idea before you commit hours If you cannot decide between two books, sample the ideas first. Short summaries can show whether an author’s approach suits you, but they leave out the evidence and examples that make an argument convincing, so treat them as a trailer. Our article on whether book summaries are worth it covers what you gain and lose. After the first book, how you read matters as much as which one you choose. Our guide on how to read non-fiction explains how to remember it. Disclosure: IQumi is made by Lucernel, the publisher of this article. ## Frequently asked questions ### What is the best non-fiction book to read first? The one that answers a question you have now. If you are unsure, Four Thousand Weeks and The Psychology of Money are the shortest on this list, at roughly 5.5 hours each. ### How long does it take to read a non-fiction book? About 5 hours 47 minutes for 300 pages at 238 words per minute and 275 words a page, or about 18 days at 20 minutes a day. ### Are all the best non-fiction books self-help? No. This list is a pair on time and money, a history (Sapiens), a book on how the mind decides (Thinking, Fast and Slow) and a true story about science and ethics (The Immortal Life of Henrietta Lacks). ### Should I read a summary before the book? A short summary can help you decide whether a book is for you, but it cannot replace the book’s evidence and examples. Read the full book if the idea matters to you. ### Is IQumi available? See the official app page for current availability and pricing. ## Our pick: IQumi, try a book’s idea in a minute Five books is a lot of hours to bet on. IQumi gives the idea of a non-fiction book as short lessons, each with one idea, an example and a takeaway, as reels or readable summaries written for IQumi and not copied from books. Use it to decide which book earns your hours. Your library remembers where you stopped. - One idea, one example and one takeaway per lesson - Reels or readable summaries - A library that remembers your place [See how IQumi works](https://lucernel.com/apps/iqumi) ## Sources (checked 2026-10-01) - [Open Library: search for Sapiens (page count)](https://openlibrary.org/search.json?q=sapiens%20harari&limit=3&fields=key,title,author_name,first_publish_year,number_of_pages_median,edition_count) - [Open Library: search for Thinking, Fast and Slow (page count)](https://openlibrary.org/search.json?q=thinking%20fast%20and%20slow%20kahneman&limit=3&fields=key,title,author_name,first_publish_year,number_of_pages_median,edition_count) - [Open Library: search for The Psychology of Money (page count)](https://openlibrary.org/search.json?title=The%20Psychology%20of%20Money&author=Morgan%20Housel&limit=3&fields=key,title,author_name,first_publish_year,number_of_pages_median,edition_count) - [Open Library: search for Four Thousand Weeks (page count)](https://openlibrary.org/search.json?title=Four%20Thousand%20Weeks&author=Oliver%20Burkeman&limit=3&fields=key,title,author_name,first_publish_year,number_of_pages_median,edition_count) - [Open Library: search for The Immortal Life of Henrietta Lacks](https://openlibrary.org/search.json?title=The+Immortal+Life+of+Henrietta+Lacks&author=Skloot&limit=2&fields=key,title,first_publish_year,number_of_pages_median) - [Open Library: work record for Thinking, Fast and Slow](https://openlibrary.org/works/OL15992072W.json) - [Open Library: work record for The Psychology of Money](https://openlibrary.org/works/OL21640039W.json) - [Yuval Noah Harari: Sapiens](https://www.ynharari.com/book/sapiens/) - [Macmillan: Thinking, Fast and Slow (introduction excerpt)](https://us.macmillan.com/books/9780374533557/thinkingfastandslow/) - [Macmillan: Four Thousand Weeks](https://us.macmillan.com/books/9780374159122/fourthousandweeks/) - [Harriman House: The Psychology of Money](https://www.harriman-house.com/psychologyofmoney) - [Oliver Burkeman: Four Thousand Weeks](https://www.oliverburkeman.com/fourthousandweeks) - [Rebecca Skloot: The Immortal Life of Henrietta Lacks](https://rebeccaskloot.com/the-immortal-life/) - [Brysbaert (2019): How many words do we read per minute? (abstract via OpenAlex)](https://api.openalex.org/works/doi:10.1016/j.jml.2019.104047)