No book is the product of just the author; he just happens to be the one with his name on the cover. A number of people have contributed to the success of this book, and it would take more space than I have to thank each one individually.

I would personally like to thank two special people who have been an inspiration and who have provided me with so much support during the writing of this book. The first is Reshma Raman, my Senior Acquisition Editor, who is the reason that this book exists, and the second is Priyanka Mehta for her understanding and support as well as her brilliant suggestive approaches during the chapter rewrites. I would like to thank both of you for everything and making the writing process enjoyable.

To my reviewers, thank you so much for your valued suggestions and improvements to make this book what it is, I am truly grateful to each and every one of you.

Thank you to the entire Packt Publishing team for working so diligently to help bring out a high quality product. A big shout out to the engineers at Apple for creating the Apple Watch and the WatchKit Platform to provide developers with the tools to create fun and sophisticated applications.

Finally, I would like to thank all of my friends for their support, understanding, and encouragement during the book writing process. I am extremely grateful to have you as my friends, and it is a privilege to know each and every one of you.