[Esug-list] Smalltalk by Example, by Alec Sharp

At http://sdmeta.gforge.inria.fr/FreeBooks/ByExample/, there are 3 PDFs containing the complete text of the book: - SmalltalkByExampleNewRelease.pdf <http://sdmeta.gforge.inria.fr/FreeBooks/ByExample/SmalltalkByExampleNewRelea...> - SmalltalkByExampleON2.pdf <http://sdmeta.gforge.inria.fr/FreeBooks/ByExample/SmalltalkByExampleON2.pdf> - SmalltalkbyExMissingChapter27.pdf <http://sdmeta.gforge.inria.fr/FreeBooks/ByExample/SmalltalkbyExMissingChapte...> I am very confused. Which one is the canonical version? There is no explanation anywhere about these PDFs.