The third edition finally came out in December 2022! For the foreseeable future I will be putting out two versions, “electronic” and “print”. The former has hyperlinks in its Table of Contents, while the latter has page numbers. Unfortunately, cross-references within the latter document are still hyperlinks (blame Google Docs), and will hence likely be useless on paper. Sorry.
PLAI is a superb successor to EOPL, Daniel P. Friedman, Mitchell Wand, and Christopher T. Haynes' Essentials of Programming Languages. The explanations are clear and deep and the code is beautiful.
Amazing book about building programming languages with a very easy-going process of building interpreters. Even if you never plan on designing a programming language, it can be very instructive (if you take programming seriously)