Ladybird 
Human Body: Read It Yourself — Level 4 Fluent Reader 

The human body is amazing! Learn all about different parts of the body from the skeleton and muscles to the circulatory system and digestion in this fascinating fact-filled book.The Human Body is from Fluent Reader Level 4 and is ideal for more fluent readers aged from 7+ who are starting to read independently.Each book has been carefully checked by educational and subject consultants and includes comprehension puzzles, book band information, and tips for helping children with their reading.With five levels to take children from first phonics to fluent reading and a wide range of different stories and topics for every interest, Read It Yourself helps children build their confidence and begin reading for pleasure.