An easy-to-read Australian introduction to the subject, this text is intended for a one semester introductory course on discrete mathematics and related topics for information technology or computing students. The book assumes little or no mathematical background. The fundamental concepts of a wide range of topics in discrete mathematics have been introduced in an exceptionally clear manner, with examples followed by activities for problem solving. The text is designed to build understanding and confidence quickly. Students are able to gain feedback on performance straight away, with solutions to activities in each chapter.