Flitsboek makes summaries of self-help books. By subscribing you get access to all our summaries. The categories are: mindset, entrepreneurship, personal finance, investing, communication, positivity, health and more. Our summaries are made in such a way that you can read or listen to them within 15/20 minutes. After reading or listening to our summaries, you can be sure that you know all the important information about the book!