This document discusses various ways to use expressions and code blocks in Razor markup, including enclosing code in code blocks, encoding and unencoding expressions, combining text and markup, mixing code and plain text, using explicit expressions, escaping characters, and creating Razor delegates. It also lists common conversion methods for Razor such as AsInt(), IsInt(), AsBool(), IsBool(), AsFloat(), IsFloat(), AsDecimal(), IsDecimal(), AsDateTime(), and IsDateTime().