How to express yourself better? Reading helps you understand the point of view of the author. The author, who has filled so many pages with his/her/their ideas and understanding of the world, helps you comprehend new ideas that you may not be aware of. That is not to say that every book hitherto has been right and correct for all ages and times, but if you read more, you are very likely to develop an idea of the world from very different angles. That might help you develop more ideas and solutions for the things you may not be prepared.