This book was compiled in an effort to introduce the most basic things to those who want to learn about Buddhism, especially those who really want to practice Buddhist teachings. With rich references, the author has mentioned the most essential issues that Buddhists need to know well. This is a practical book in the first step of studying Buddhism, with the author's success in systemize many topics so readers can easily use it as a reference for many subjects. Therefore, we have decided to publish this book to make it available to the public, with the permission of the author himself. We sincerely thank Thien Phuc, the author, for his kind decision. We've received the draft in both English and Vietnamese, but it's not in bilingual print format. Instead, it's printed sequentially. To make it easier for readers to use this book, we've redisigned the book to publish in 3 seperate books. The first book is in Vietnamese, and the second is this one, an English version titled "Essential Summaries of Buddhist Teachings". The third book is printed in bilingual format, with both English and Vietnamese languages. We also provide the contents of these books for free on the website www.rongmotamhon.net. Only those who want a printed book will have to pay the cost of printing. May these efforts contribute to bringing the Dhamma to everyone.