NEW EDITION AVAILABLE: this book has now been replaced by an updated version for the new A-Level courses - see 9781782942795. This book is designed to help bridge the gap between GCSE and AS Level Biology. It's full of clear notes and helpful practice to recap the most difficult topics from GCSE Biology that students need when going on to study AS Level Biology. Everything you need to know for all the exam boards is explained clearly and simply, in CGP's chatty straightforward style.