This book is the 6th book in the Young Explorer Series, from apologia Science, Christian-based Science Curriculum. This Book is titled: Exploring Creation with Human Anatomy and Physiology, written by Jeannie Fulbright and Brooke Ryan, MD. This curriculum uses Charlotte Mason methodology to give young student introduction to the incredible human body. The condition— it still looks new, it may have been gently used. The tag is still on. No writing in the pages. Scratches are visible on cover from multiple moves. Non smoking Pet friendly home.