"The mathematical textbook "Meetkundig Schoolboek" by the well-known author Hendrik Sluijters is an indispensable guide for anyone interested in geometry. The book contains interesting tasks and examples that will help not only to understand the basic concepts of geometry, but also to develop logical thinking and analytical abilities. The author successfully combined theory with practical tasks, making learning mathematics an exciting and effective process. "Meetkundig Schoolboek" is an excellent choice for both students and teachers who are looking for quality material for teaching geometry."