Any book recommendation for writing a compiler?

[Michael V. Franklin]

On Wednesday, 1 November 2017 at 20:53:44 UTC, Dr. Assembly wrote:
> Hey guys, if I were to get into dmd's source code to play a 
> little bit (just for fun, no commercial use at all), which 
> books/resources do you recommend to start out?

I found this to be quite helpful: http://llvm.org/docs/tutorial/  
Specifically the Kaleidoscope tutorial.

Mike