4-Pack DSLR & SLR Cheatsheets. Pocket sized quick reference cards. Complete series for use with Canon Rebel XT XTi XS XSi T1i T2i T3 T3i T4i T5 T5i T6 T6i T6s Concise, durable & ultra-light 45 cards with numerous how-to tips, tricks, techniques, and charts to help create stunning images Unlike most manuals, Quik Cards are written in easy-to-understand language Just clip them in your camera bag for quick help when you're out shooting Great reference for Beginners and Pros alike