This e-book has been written specifically to cover the 'Oceans and Coastal Margins' option (Option B) for the current IB (International Baccalaureate) Geography course. Now in its 2nd edition, 'Our Planet's Oceans and Coastal Margins' covers every aspect of the course requirements, organized in a way that precisely mirrors the order and content of the IB syllabus. The e-book is profusely illustrated, with 228 colour photos, 48 maps and diagrams, and 153 thought-provoking questions and student exercises. This e-book captures the specific requirements of IB Geography, the spirit of inquiry, and the global philosophy of the International Baccalaureate.