I would like to thank the team of editors, proof readers, and designers who contributed to the quality of this book. My special thanks goes to the technical reviewers of this book for identifying mistakes and suggesting improvements.

To my teachers and mentors, thank you for contributing to my knowledge and experience. I would also like to extent my appreciation to all my colleagues and peers. I enjoy our discussions and collaborations, and they have helped me with the content of this book.

Special thanks also goes to all my family and friends for sharing my happiness and supporting me when I started this project.

To my beautiful children, Heba and Zaki, thank you for the understanding on those days when I was away writing this book. You both bring me so much joy and make me smile every single day. You missed out on daddy time while I was writing this book and I will try my best to make it up.

Finally, to my lovely wife Sadia, thank you for your love and support as I fit the writing schedule into our already overly busy life. You took on additional duties every weekend I had to go write this book. The hard work you put in and the motivation you have is my inspiration. This book has been a long journey for all of us and I could not have done it without you.