Get 40% Off My Ruby Performance Optimization Book (and Other PragProg Ebooks Too)

Posted by Alexander Dymo on July 16, 2015

Pragmatic Bookshelf has a sale today through Friday. They give 40% off any ebook when you use code XMASJULY2015 during the checkout. Beta ebooks are also on sale, so it's a good chance to get my Ruby Performance Optimization for just $14.40 (full price is $24).

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