We are pleased to present "Guide to Pharmaceutics," a book which is designed with our experience from being a pharmacy student to a professional, over the years. We have been exposed to different sectors from research to corporate and finally to the academics. During this course of time especially during our academic days we have encountered that many students particularly from Diploma in Pharmacy was struggling to understand the key points of the subject. What most influenced us to write this question answer based guidebook, is the way in which Diploma in Pharmacy students was answering the questions. This book is edited by, Dr. Mohammed Asadullah Jahangir, Associate Professor at Nibha Institute of Pharmaceutical Sciences, India; Dr. Mohammed Shadab Shahab, Associate Professor at Nibha Institute of Pharmaceutical Sciences, India; Mr. Sohrab Alam, Associate Professor at Nibha Institute of Pharmaceutical Sciences, India and Dr. Archana, Principal at MGM College of Pharmacy, India. The salient features of the current book are: 1. Question answer based chapter wise discussion as per PCI syllabus. 2. Easy to understand the language of the subject matter. 3. Necessary details are provided throughout the chapter. 4. Neat and clean diagrams are given for better understanding of the subject matter. 5. Being a question answer based guidebook it aims to make students understand the way of writing answers during examinations.