@un_i_ @joeerl They are freely available online, which is great!
Blue Book (impl): stephane.ducasse.free.fr/FreeBooks/Blue…
Red Book (IDE): stephane.ducasse.free.fr/FreeBooks/TheI…
... and lots more freely-available Smalltalk books, all courtesy of @stephaneducasse: stephane.ducasse.free.fr/FreeBooks/
