Cambridge CIE IGCSE Biology OL fourth generation unused textbook for sale, only one page was written on using a pencil on a sticky note. This book is genuine and contains around 400 pages. It contains explanations on all lessons, a glossary and an index. Published by Boost and HODDER EDUCATION. Willing to negotiate, please call me or send a message for any other questions. Reason for selling: I studied from other notes and didn't use this one, however is does coontain excellent explanantion and excercises for each lesson.