My big book brings my body

My big book answers (your body) What is the number of your bones? Why is the blood color red? Open the windows so you find the answer to these questions and many other questions that are no less than them in wonder. In front of you is a large book filled with interesting and astonishing information about the human body. Why do you have dreams? Details.. Number of pages: 13 pages Type of binding: cardboard Approximate dimensions: 28.5x21.5 cm