Designed as a companion throughout any AS or A2 course, this volume should help students access, understand and revise for their exams using the textbook by Haralambos and Holborn. Structured around the 15 chapter headings of the fifth edition, each unit contains: at-a-glance specification links for both main boards at AS and A2 levels; relevant sections in the main textbook highlighted and summarised with marginal key points and headings; multiple choice questions to aid knowledge and understanding; a build your skills section with activities to develop evaluation; and exam practice questions and worked answers with examiner input.