As of Oct 27, 2026, 11:53 AM ET, the Practical Object-Oriented Design: An Agile Primer Using Ruby is listed online by InformIT (informit.com) at $38.39; the store's feed doesn't report stock.
InformIT sells it online at informit.com. The price and stock here come from InformIT's own product feed, checked Oct 27, 2026.
| Option | Model no. | Price | Online availability | |
|---|---|---|---|---|
| Standard | 9780134445601 | $38.39 | Listed online (stock not reported) | Buy at informit.com |
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It costs $38.39 at InformIT, as of Oct 27, 2026.
InformIT's product feed doesn't say whether it's in stock. It lists it at informit.com; check there before you buy.
The Complete Guide to Writing Maintainable, Manageable, Pleasing, and Powerful Object-Oriented Applications Object-oriented programming languages have a point of view about how best to model the world