Compilers are the bridge between the code you write and the applications you run. While production compilers can be quite complicated, the principles of compiler design are not too hard to learn, and are broadly applicable to many seemingly difficult programming problems. In this session you will learn to write a compiler for a toy language, targeting the .NET runtime, in F#, even if you have no previous experience with compilers, F#, or functional programming. You will learn how every part of a modern compiler toolchain works, including lexing, parsing, optimization, and code generation.