Learn Objective-C on the Mac (paperback, 2009)

Coverage & research gaps (7)

Coverage measures the evidence recorded here. It does not rate the product.

• Identity: 3 / 3 · Name, brand and classification recorded
• Book details: 6 / 6 · Profile fields recorded: authors, publisher, language, binding, pages, published. Missing fields may require research or an applicability note.
• Context: 1 / 1 · Evidence groups assigned to a researched label, edition or analysis
• Label photographs: 0 / 1 · Researched contexts with an assigned photograph

• identity · disputed: Publication year: Apress gives copyright 2009 and Open Library records 2009, while AbeBooks records 2008 for the same ISBN. A late-2008 release carrying a 2009 copyright would explain both, but no source read states the month.
• identity · disputed: Page count: the publisher states XXII, 360 pages; the library MARC record behind the Open Library edition says xxi, 337 p. The publisher's figure is recorded here.
• markets · unknown: Current availability is unconfirmed, so status is left unset: link.springer.com, which now carries Apress titles, answers a bot challenge and an SSO redirect, and no new-copy publisher or retailer listing could be read in 2026.
• relationships · not_applicable: The barcode is an ISBN in the 978 Bookland range, which carries no GS1 company prefix, so no gs1_prefix_owner is recorded; the registrant element 1-4302 is Apress's own ISBN publisher prefix.
• markets · unknown: Amazon storefronts other than amazon.com, and the UK and Australian booksellers found by search (lovereading.co.uk, boomerangbooks.com.au), refused the fetch, so no listing is cited for DE, FR, CA or AU.
• images · unknown: No freely licensed picture of this cover was found: Open Library's cover scan and the retailer images carry no reuse licence, and the Internet Archive scan of the book is dark.
• images · not_researched: No product photographs recorded.