Book excerpt: This phenomenal book makes the process of creating your own Apps a breeze. Christine and Avinash start off with a unique transformational hands-on learning experience with the reader by guiding them step by step using a gamified environment unique to the examples used in this book. All you need is an Android Device (A Phone or Tablet or even a Computer) and the rest is left up to your imagination. This extraordinary book introduces you to App Inventor, a powerful Cloud-Based Visual Block Coding Environment that lets anyone build Mobile Apps instantaneously. Learn App Inventor basics using a Micro Learning approach with this step-by-step guide to building hours of fun filled projects for kids and adults alike. Build a Puppy App and see a Sheltie Puppy ‘Barking’ every time you touch the screen or shake your phone; Build a game of TIC-TAC-TOE and other 3D titles including 3D Pong; Create a Calculator App to show off to your friends; and Build an amazing Selfie App and sell it Online to Monetize on Google Play to start Building Your Zillion $$$ App Empire! The second half of this book features a primer on: HTML 5; CSS 3; jQuery; and JavaScript for the Mobile Apps platform. It helps the reader to understand the fundamentals of the App building process along with digesting small but unique computing concepts. Building your Zillion $$$ App Empire makes an excellent text for beginners and experienced Appreneurs of the App Ecosystem: · Make a Selfie App to take your pictures to the next level; · Create a TODO App and store your routine information on your phone; · Design Gaming Apps with 2D/3D Graphics and Animation using the Canvas Component; · Build a Tic-Tac-Toe App using Bluetooth and other Network Components; · Create Apps that help people during the Covid-19 Pandemic; · Create Event Driven Apps using Custom Animations and Multiple Screens; and · Build Location-Aware and Internet of Things (IoT) enabled Apps with your phone sensors; and store information on Google Drive to develop IoT and Internet Rich Apps. “This is an amazing text for sophomore, high school and university students alike for building Mobile Apps for all age groups. My students loved the examples especially building the Hello Alex App (featuring a Puppy Barking when the phone is shaken) which was extended into building their own creative apps like a Talking Parrot and using a Mirror for Selfie Apps. Overall, this is a great introductory text on Mobile Apps development for Professionals and Novices!” - Dr Marystella Amaldas, Senior Educator, Singapore International. “It is incredible to see how my students were able to build apps from scratch using this book. Personally, I have worked with the authors and they are truly remarkable at bringing such content to the Japanese and Taiwanese students. A void honestly filled by one’s research in one’s academic endeavors. Congratulations (Omedetou gozaimasu - おめでとうございます) on a job well done!” - Miki Yuasa, Consultant, Aries Group, India.