๐Practical Common LispauthorsPeter Seibelyear2005urlhttps://gigamonkeys.com/book/BacklinksCommon LispLisp exposes two levels of syntax (s-expressions and lisp forms)Dynamic scoping is a better model for global variablesIn Common Lisp, global variables use star *naming* *convention* because of dynamic scopingScope vs. Extentยง Books