There is a strong need for smaller, more focused and accessible organic chemistry textbooks to guide students through the key principles of the subject, as a result of the modularisation of chemistry courses, which has lead to a less integrated approach to teaching and frequent examination of students. Under these circumstances, the traditional organic chemistry textbook, which tends to be very large, is starting to overpower the average student. This book aims to provide concise organic chemistry notes for students studying chemistry and related courses at undergraduate level. The material is organised such that fundamental concepts are introduced early, and then built on to provide an overview of the key principles of functional group chemistry and reactivity, which is the core of a solid understanding of organic chemistry. Graphical presentation of information is central to the book, to facilitate the rapid assimilation and understanding of key concepts, principles and definitions. First year students wanting an overview of the key principles and fundamental concepts which govern the whole of organic chemistry, and final year students preparing for examinations, should find the book an ideal source of information.