ISBN: 9780596004927
Buy on O'Reilly
Found 2 comments on HN
jonSson99 · 2017-05-06 · Original thread
Everyone should start with the perl camel book, http://shop.oreilly.com/product/9780596000271.do
telemachos · 2011-07-05 · Original thread
As Draegtun says, the (very welcome) Camel update is coming this October.

http://oreilly.com/catalog/9780596004927

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