Hello Racketeers, A friend and I recently finished working through this book together, The Elements of Computing Systems - <a href="http://www1.idc.ac.il/tecs/" target="_blank">http://www1.idc.ac.il/tecs/</a>, where we built a computer (virtually) from the ground up: from NAND gates, to a (barely) working compiler and a very basic OS. After finishing all of the projects, and after having a month or so now to recover from the stress and pure insanity, I can't stop thinking about how fun it would be to learn about the implementation of Scheme, or, more specifically, Racket! Does anyone know where I could find a good discussion or explanation of the inner workings of either of these languages? I apologize if this is an off-topic question for the mailing list. Also, I want to sincerely thank the Racket Devs for creating such a well documented, and user-friendly project. Other than completing about half of HTDP (I'm planning on finishing the rest this summer!), and a very introductory C++ class many years ago in college, the Elements book was really my first introduction to computing. Having coded the assembler, VM, and compiler for the book in Racket, I have basically lived on the Racket docs pages for the last three quarters of a year. It's been an amazing journey, and I honestly could not have completed everything had Racket not come with such excellent documentation, such an easy to use IDE, or had it not been such a joy to code in. On behalf of a true beginner, thank you. Cheers, Curtis Wolterding