Welcome to Mobile Application Development! Developing apps can be fun and is potentially lucrative, but it is also quickly becoming a core skill in the information technology field. Businesses are increasingly looking to mobile apps to enhance their relationships with their customers and improve their internal processes. They need individuals skilled in developing the mobile apps that support these initiatives. This book is intended to be an introduction to mobile app development. We, the authors introduce this MOBILE APPLICATION DEVELOPMENT book aims to help put you in a place to succeed as a designer in today’s app market by teaching proven principles and techniques that you can use in your next app. After you successfully complete the book, you will have the basic skills to develop Android apps. The book takes you from the creation of an app through the publication of the app to its intended audience on both platforms. Although the book is an introduction, it does cover many of the unique features of the mobile platforms that make apps a technology offering new capabilities that businesses may use to enrich or augment their operations. If you have suggestions, bug fixes, corrections, or anything else you’d like to contribute to a future edition, please contact us at saravklvn@gmail.com. We appreciate any and all feedback that helps make this a better book. —SARAVANAN. K & ANANDHI. R. J, December 2020