This document provides 15 tips and tricks for using XAML in Xamarin.Forms applications. It begins with introductions to XAML and Xamarin.Forms. It then covers tips such as using string formatting, attached properties, generic styles, native properties, simplifying namespaces, triggers, converters, commands, passing parameters, creating colors, and visual states. Examples are provided before and after demonstrating each tip. References and contact information are provided at the end.