This book is a comprehensive guide, starting from basic principles and leading to real-life reservoir management aided by simulation software. It is a modern and very practical approach offering reservoir engineering fundamentals, advanced reservoir related topics, reservoir simulation fundamentals, and problems and case studies from around the world. It is designed to aid students and professionals alike in their active and important roles throughout the reservoir life cycle and in the various phases of the reservoir management process. This practical resource explores the functions of reservoir engineers and how they analyze, think, and work in real life situations. Finally, the book offers class projects based on real life experience where the students can demonstrate the skills acquired from this book.