I was about to mention An Incremental Approach to Compiler Construction, but you've just saved me the trouble of digging up the link. It's a mere 11 pages, but

I was about to mention An Incremental Approach to Compiler Construction, but you've just saved me the trouble of digging up the link. It's a mere 11 pages, but it covers a lot of ground, in small, easy-to-digest pieces, and invites you to follow along and get your hands dirty. Highly recommended.