About the reviewer

Ashok Kumar S has been working in the mobile development domain for about six years. In his early days, he was a JavaScript and Node.js developer. Thanks to his strong web development skills, he mastered web and mobile development. He is a Google-certified engineer, a speaker at global-scale conferences, including DroidCon Berlin and MODS, and also runs a YouTube channel called AndroidABCD for Android developers. He also contributes to open source heavily with a view to improving his e-karma. He has written books on Wear OS programming and Mastering Firebase Toolchain. He has also reviewed books on mobile and web development, namely, Mastering JUnit5, Android Programming for Beginners, and Building Enterprise JavaScript Applications.