This is the authors' home page for EOPL3. EOPL3 Materials Preface The MIT Press homepage. The code and errata are now on Github. The code has now been updated and should run right out of the box on Racket version 5.3.6. Pull requests are welcome. To run any of the languages, select "Choose language from source", and run top.scm in any of the language directories (chapterN/*-lang). Google group for