When I draw a picture, I tend to get a "funny picture" or "impossible picture" because I can't grasp the shape well. Knowledge of perspective is useful in such cases. In this book, we will first hold down the basics of perspective based on a square box, and then gradually raise the level such as "What if two boxes overlap?" "What if the angles of the two boxes are different?" I will draw. This is a must-read book for anyone who wants to draw pictures of the city, such as illustrations, manga, and landscape paintings.