Why cloud? The evolution of cloud technology has drastically reduced the time and effort to ship an idea to the market. You neither need costly physical servers nor expensive maintenance engineers. Moving to the cloud takes care of everything. The best part is you only pay for what you use. This is a boon for individual developers and start-ups. What is in this book? Ever wondered how apps like Uber, Whatsapp, Snapchat, Instagram, Feedly, etc. work? Uber provides you locations of available cars real-time. Whatsapp, Snapchat lets you send text, photos and videos instantly. Instagram enables you to share photos. Feedly gives you news of your interest. This book teaches you to build such cloud apps. Who is the book for? 1. You are a computer science student looking to learn industry skills. 2. You have basic coding skills and want to learn cloud development. 3. You are a software engineer with years of experience but don't understand the cloud. 4. You want to move your service to cloud. 5. You want to develop cloud apps. "Febin does a brilliant job of introducing cloud computing jargon in layman's terms while at the same time carefully guiding the reader in getting started in building cloud apps practically without spoon feeding him/her." Naresh Annangar, Sr. Security Researcher, Zscaler "Cloud computing is no more the future; It is the present. From playing a game on Facebook to reading an e-book on a Kindle, everything is driven by cloud computing around us. This book makes learning fun, interesting and you get to solve real world problems .If you are a wannapreneur, entrepreneur, a student or someone who wants to start off with cloud computing, then this book is for you. Beware this book gets you addicted to cloud computing!" Vishnu Sosale, Android Developer, HackerEarth