Yakov Isi Dalovic Beliman 
Interesting Mechanics for Children 

It basically covers all the concepts of mechanics, but some concepts just briefly mentioned rather than being specifically analyzed. The most important purpose of this book is to enrich readers‘ knowledge of mechanics and stimulate their interest in learning, so readers could explore the knowledge not covered in the book by themselves. In short, it is an interesting popular science book that could benefit readers a lot! Astronomy: This book is Berryman’s theory of "heaven", introducing the most basic knowledge about astronomy and explaining some basic astronomical phenomena. Berryman, the author, gives readers a novel and interesting interpretation of common phenomena, and even the simplest questions will give readers the most unexpected answers. Anyone who has read this book will find the magic charm of astronomy and become interested in it. In short, it is an interesting popular science book that could benefit readers a lot!