In terms of light, in order to understand the characteristics of various kinds of light and what kind of effect a light will produce in the picture, I recommend reading the book "Visual Art with Light" by Richard Jotter. Although this book is not specifically aimed at photography, it makes a detailed analysis of the essence, characteristics and functions of light, which can fundamentally understand light.

In composition, we should learn a little knowledge of graphic design and understand the elements of point, line and plane. Simply put, it is to learn how to arrange the elements seen in the viewfinder in an orderly way in a picture. I recommend reading the book "The Photographer's Vision" by Michael Freeman. He is the top photographer in the world, and this book can be said to be the best among his many works.

After understanding the two key technical points of light and composition, I recommend reading the book "The Cultivation of Photographic Eyes: Improving Observation Ability through Theme Shooting" written by German photographer harald Mann. This book strengthens your observation ability by teaching you to practice taking a series of photos with the same theme. The method is unique. I believe you will gain something by following the study.