This classical textbook in the best sense of the word is now completely revised, updated and with more than 40% new content. The approved ordering system according to the ring size of the heterocycles has been retained, while the important chapter on ""Problems and their Solutions"" has been almost completely renewed by introduction of up-to-date scientific exercises, resulting in a great tool for self-testing andexams. A chapter on nomenclature and a helpful index of name reactions has also been retained. With approximately 1,000 new literature citations, this book remains a brilliant gat.Abstract: * Clearly structured with proven systematic: The ordering system according to the ring size of the heterocycles will remain. * New: The contents of the important chapter "Problems and theirSolutions" will be completely re-structured and enhanced with up-to-date scientific exercises. A great tool for self-testing and exams.