Gaelan D'costa’s Reviews > An Introduction to Programming in Emacs Lisp > Status Update

save-excursion sounds like a really important function to learn, alongside concepts of the point, mark, buffer and region.

Emacs Lisp is a Lisp-2, and this book doesn't think that is weird so won't call it out all the time when reusing symbols for values and functions.

(message) is our first "println", printing to the echo area.