As of Oct 27, 2026, 11:53 AM ET, the macOS Support Essentials 11: Apple Pro Training Series; Supporting and Troubleshoot macOS Big Sur (Web Edition) is listed online by InformIT (informit.com) at $53.59; 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 | 9780137510139 | $53.59 | Listed online (stock not reported) | Buy at informit.com |
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It costs $53.59 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 Apple-Certified Way to Learnmac OS Support Essentials 11, the official book for mac OS support, is a top-notch primer for anyone who needs to support, troubleshoot, or optimize mac OS Big Sur, suc