"Organon" being the key to the understanding of homeopathic philosophy, a clearer perception of the subject is a must for successful prescribing. Easier and simpler texts incorporating the true spirit of Organon are the need of the hour and Dr Thombre's work is one giant step forward in this direction. The author with his deep knowledge of the subject has arranged the entire text group wise with detailed commentary on each aphorism. Individual word meanings as well as combined phrases have been well explained. Derivations and cross references with their significance have been discussed wherever possible. The book has been specially written keeping in mind the difficulties of the students. It can be said that this book is a smaller creation in the ocean of Homeopathic system of medicine. It is expected to be practically valuable for students, teachers as well as true practitioners of the healing art.