Aim for the top marks with simple revision strategies for the most complex topics and terms, from the IB's most trusted ES&S experts. Environmental Systems and Societies for the IB Diploma Revision Guide will ensure students can aim for their best grade with the help of relevant and accessible notes, examiner advice, and questions and answers on each key topic. - Builds revision skills through a range of strategies and detailed examiner advice - Covers all the knowledge with concise, clear explanations of all the syllabus requirements and topics - Demonstrates what is required to get the best grades with tips, sample questions and model answers Answers are available for free online at www.hodderplus.com