This book taught me that one should invest for long term and have a buy and hold approach and only enter when the value is right. I have seen that most stock market investors start with short term and momentum kind of investing. Over time some of them realise that they are not making too much money even though it is fun. Then they change their style to buy and hold. If you can relate to what I have just described – then this is a good book for you. Here is a great review of this book- https://seekingalpha.com/article/18059-book-review-the-little-book-of-value-investing-an-excellent-entry-point-for-novices?page=2