This book has been prepared to serve as a concise, illustrated companion for students of the B.Pharm course studying Pharmaceutical Engineering (Theory) . It covers the five units of the prescribed syllabus: unit operations associated with solids, unit operations associated with liquids, unit operations associated with heat transfer, materials and material handling, and flow of fluids. Every important piece of equipment is presented with a hand-drawn style line diagram, followed by its principle, construction, working, advantages, disadvantages, and pharmaceutical applications, so that students can visualise the machinery while learning the underlying engineering concepts. It is hoped that this book will help students grasp both the theory and the practical working of pharmaceutical machinery with clarity and confidence