Be warned that, despite the name, the Reasoned Schemer is only tangentially about scheme; it focuses on miniKanren, a somewhere-in-the-Prolog-ballpark logic programming language created by one of Friedman's students, that is implemented as an extension to the Scheme language proper (among other languages, most notably as the clojure core.logic library).

Also Friedman and Byrd did show up to a few clojure talks and seemed, from the online videos, to be highly entertaining - I remember their using miniKanren to automatically generate scheme programs that evaluated to 6 being particularly fun.

I want to pick that one up once I've gotten most of the way through The Seasoned Schemer, or if I see it through the window of the MIT Press store and can't resist.