A book like the summary for an example It teaches how to understand the crux of a book within 15 minutes, how to analyze a book intelligently, and how to synthesize ideas from multiple books. Study the table of contents to get a sense of the content structure.  if you like that book, then read the entire book. If you don't like that book but you want to know the content of the book, go on with reading the summary of the book. How you should read it according to a subject matter and kind. State what the whole book is about with the utmost brevity. Enumerate its major parts in their order and relation, and outline these parts as you have outlined the whole. And also Define the problem or problems the author is trying to solve.