ISBN-13: 9781504933797 / Angielski / Miękka / 2015 / 58 str.
This book is aimed at young people (ages eight to twelve). It describes each of the blood cells or formed elements in blood, using cartoons as illustrations. Each cell is described as to its appearance, its function or job, how it does its job, where it came from, what can go wrong, and what the reader can do to help.