My latest book about LISP, metacircular interpretation, self-compilation, and hacking in the age of big iron. Contains many small implementations, including a simple LISP->C compiler. Code is in the public domain! Enjoy!

I noticed you wrote a book on "Raja Yoga". Super interesting. Do you attribute your superpowers (the fact that you are knowledgeable about and created all these books) to concentration meditation?

:)

Honestly I don't know! Meditation certainly improved my focus, so it may have had some effect.

I do not consider my writing to be a siddhi (superpower), though!

What are the key differences between this book and your other title "Lisp system implementation"? What is covered in one but not in the other, what are the common grounds, etc...

LSI is about the implementation of a rather complex LISP system (6500 lines) in C. LFN is about the implementation of minimal (toy) LISPs in LISP. The only common ground is that the compiler discussed in LFN borrows from the one in LSI.