Writing such a book is quite hard, especially when you are busy managing the operations and technical team at your own startup. I would like to thank my business partner, Sandip Saha, who shared the workload so that I could spend more time completing this book. Special thanks to my senior, Saikat Sengupta, who did all the editing and proofreading for each chapter—the whole journey wouldn't have been this smooth without his help.

Writing this book would never have been possible without the help of the Backbone community who have contributed to all the technologies that I have used in this book. I would like to extend my heartfelt gratitude to the forums, tutorials, and blog posts for all the discussions, ideas, and feedback that shaped this book. I would like to thank the technical reviewers who provided immensely useful feedback that helped me enrich the content of this book. I am very much thankful to Sageer Parkar, the project coordinator of this book, for his cooperation and assistance.

I want to thank my brother, my closest friends Subhradip, Sudipta, Priyendra, Suramya, Arup, Payel, and the entire Innofied team for all their support. Finally, a special thank you to my lovely wife for the moral support and the amazing cover page photo.