In today’s society, digital services and products have penetrated into every aspect of our lives, and mobile phones and tablets have become essential tools for modern people. As a result, more and more designers are focusing on the user experience in interaction design. This book showcases the excellent interaction design work of nearly 100 designers, covering the different directions and categories of research for interaction design, all of which vividly present the usability of digital product design and a pleasing user experience. In the book, designers will analyze their work from a variety of perspectives, such as product characteristics, creative purposes, and target users. This will provide beginners and practitioners of interactive design with easy-to-understand case guidance and inspiration in creation source.