This document introduces Flutter, a UI toolkit from Google that allows building mobile, web, and desktop applications from a single codebase. It is presented by Akassharjun Shanmugarajah, an Android and Flutter enthusiast. Key features of Flutter highlighted are fast development, expressive and flexible UI, native performance, and using a single codebase. Common widgets like Container, Column, Row, Text, Align, List View, Raised Button and Floating Action Button are also mentioned.