This guide provides crisp revision of all syllabus topics with detailed support for constructing, analysing and labelling diagrams to assist with complete understanding. In addition, students will learn how to design, select and use diagrams to explain concepts while answering examination questions. A 'tips' section provides practical suggestions and a complete glossary provides a much needed teacher and student reference. In addition, there are guidelines on examiner recommendations along with exam practice and a selection of past questions.