"A man is known by the books he reads" Ralph Waldo Emerson

Book Knowledge Extraction services

These services provide short overviews of knowledge, contained in non-fiction books to encourage reading and save time. Some of the most popular book knowledge extraction services are listed below.

See also: Top 10 eBook Organizers

2024. Amazon removed Kindle Flashcards



Amazon has begun sending out emails notifying customers about their plan to discontinue the Flashcards feature on Kindles. The Flashcards feature allows you to review words that you’ve looked up in the dictionary and mark them as mastered. However, the Vocabulary Builder feature will remain, so you can still review looked up words, just not using flashcards. Amazon already started removing the Flashcards feature from Kindle apps and they intend to do away with Flashcards entirely in November of 2024. Users can request the flashcards associated with their account from this page at Amazon and continue using them on their own devices, but all flashcards will be deleted from Amazon’s servers later this year, so you need to download them soon.


2021. Uptime turns books into knowledge hacks



A new service Uptime positions itself as a “knowledge hacking” app. It offers brief 5-minute “knowledge hacks” from books, created by their authors and validated by a team of specialists. The goal is to allow you to quickly grasp key ideas and insights from books without investing too much of your valuable time. In return, authors gain a fresh method to reach audiences who may then choose to purchase the complete works. Hacks are presented in a distinctive visual story format, designed to be inspirational and make learning efficient, enjoyable, engaging and shareable.


2018. Blinkist - condensed reading platform for non-fiction books


Startup Blinkist offers summarized versions of non-fiction literature — each title can be read or listened to in about 15 minutes. The concept is to provide you with insights from top books. The aim is not to replace reading the full book or other work but to give you enough information to determine whether you’d like to purchase it. Having popular content is crucial for Blinkist’s business model: the app is free for the first seven days, after which it costs $79.99 per year or $12.99 per month — meaning it needs to offer compelling content to attract users repeatedly.

Author: Maria Lin
Maria Lin, is a seasoned content writer who has contributed to numerous tech portals, including Mashable and bookrunch, as a guest author. She holds a Master's degree in Journalism from the University of California, where her research predominantly concentrated on mobile apps, software, AI and cloud services. With a deep passion for reading, Maria is particularly drawn to the intersection of technology and books, making book tech a subject of great interest to her. During her leisure time, she indulges in her love for cooking and finds solace in a good night's sleep. You can contact Maria Lin via email maria@bookrunch.com