Books by Design

Professional layout with elegant pattern design cover finish. Perfect notebook for planning, journaling, sketching or scrapbooking. Pencil, crayon or pen friendly, if you love classic notebooks this is definitely the notebook for you. Idea for use at home, work, class room or on the go. Very portable enough to fit in your backpack or purse and light enough not to add weight to your luggage.Things to love:* Portable size 6" x 9" (A5).* Unique professional, pattern cover design.* Professional hardcover, imagewrap bound, permanent binding.* Various cover colors to choose from.* 144 sheets (288 pages).* White uncoated, acid-free, 75 gsm paper.* Dotted 8.7mm, wide ruled lines.A good notebook is an investment that can greatly increase your productivity, get your copies today. Life best lived is life by design.

A textbook suitable for undergraduate courses, the materials in this book are presented very explicitly so that students will find it easy to read and also find a wide range of examples. A number of combinatorial problems taken from mathematical competitions and exercises are also included.

An introduction to basic counting techniques for upper secondary to undergraduate students, as well as teachers. It helps to give students an early start to learning problem-solving heuristics and thinking skills. It also includes chapters such as the Principle of Inclusion and Exclusion, the Pigeonhole Principle, and, the Catalan Numbers.