Whoever reads useless books is a plaything. What good books do you usually choose?

The first book, The Power of Calculus, is known as the mathematical version of the teacher with shining stars, and it is also a best seller of The New York Times. This book is a bit advanced, and children and adults can read it. Moreover, this book may turn readers into mathematicians. If it is for children, it may be better to put it on the same shelf as the second book, The Power of Mathematics. Children who know nothing about calculus can also watch it. They can face calculus in advance, and they are not afraid to learn advanced mathematics in the future. You have studied calculus and almost forgotten it. What about you? It's also suitable for watching, so don't worry about not understanding it. There are very detailed explanations and carefully drawn illustrations in the book, so it is no problem to get started easily. Similarly, if you are keen on reading scientific anecdotes, this book is also suitable for you. Dramatic words in the book can take you back to an important upgrade that changes the mathematical process.

The second book, Economics, is very interesting. Everyone knows about online classes, but have you ever heard of the virtual class of 16 famous economists? In this form, this book combines obscure economic theories with various economic phenomena to tell you what economics is all about in a popular and detailed way. William Patty, the father of political economy, talked about interest, Adam Smith, the father of modern economics, talked about division of labor, Keynes talked about macro-control, Marx talked about surplus value and so on. Yes, every economic concept is explained by the most authoritative economist in this field. In the process of reading, you will also have an immersive interaction with them. This book is a good choice for friends who want to know about economics.

The third book, Wisdom of Plants, is a popular science work of natural science. From the perspective of multi-science, various kinds of wisdom in the process of plant evolution, such as the wisdom of roots and leaves, the wisdom of flowering and so on, are discussed with rich cases. The book The Wisdom of Fruits and Seeds is different from other popular science books in that it has a broad vision and integrates many disciplines such as plant taxonomy, ecology, environmental biology, behavior, etc., and takes you to understand the way of plant survival. Although the subject is comprehensive, few professional blackening authors in the book share what they have seen and heard in the field in popular language, and he is also an excellent eco-photographer, so all kinds of macro pictures in the book are also beautiful.