AppleScript: The Definitive Guide
ISBN: 9780596102111
Buy on O'Reilly
Found in 1 comment on Hacker News
steveax · 2014-09-18 · Original thread
The best documentation is Matt Neuburg's _AppleScript: The Definitive Guide_ [1] although it may be a bit dated now. Matt is one of the most talented tech writers out there.

[1]: http://shop.oreilly.com/product/9780596102111.do

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