This document provides an overview of wireframing for designers. It defines wireframes as visual representations of a website's skeletal framework. Wireframes are used early in the design process to plan page layout, functionality, content and user behavior at a low cost before visual design. The document outlines tips for wireframing such as using stencil libraries, pattern libraries and grids. It also provides examples of low and high-fidelity wireframes and prompts designers to create a wireframe for a dog adoption site.