It is written in such a manner that beginners can develop an interest in the subject. Besides providing the essentials, it also provides problem- solving techniques and develops the skill of how to think logically. Organized into two parts. The first part on discrete mathematics covers a wide range of topics such as predicate logic, recurrences, generating function, combinatorics, partially-ordered sets, lattices, Boolean algebra, finite state machines, finite fields, elementary number theory and discrete probability. The second part on graph theory covers planarity, colouring and partitioning, directed and algebraic graphs.