Matsushita Eri is a Web/UI designer from Osaka and a graduate from Faculty of Science and Technology, Tokyo University of Science. After engaging in development and support work at a communication equipment manufacturer, she transferred to design and public relations secretary work. Since 2010, she has been independent as a freelance and has been designing and directing DTP/Web/apps. She also served as a part-time lecturer at Kyoto University of Art and Design, Digital Hollywood Osaka School, computer vocational school HAL, and focused on the operation of "Adobe XD User Group Osaka" and "CSS Nite in Osaka", as well as at seminars and corporate training. In 2020, she published “Web design & prototyping with Adobe XD: Skills on the spot one step ahead” (Shoeisha).