If you want to remember what you learned in a book, writing a book review is an excellent way to reinforce your memory. If you just take a few minutes to record what you have read after you finish reading a book, you will find you have a better understanding and recall of the material at a later date. You don’t have to publish your review anywhere—the process is useful even if you don’t. However, sending it to people, or publishing it on social media or dedicated book review websites, may benefit others. In turn, you can also learn something from your interactions with others about these reviews.