SpiderWorks Press today announced the release of “Learn Objective-C on the Macintosh” by best-selling authors Mark Dalrymple and Scott Knaster. Objective-C is a powerful extension of C, making this book an ideal follow-up to SpiderWorks’ popular “Learn C on the Macintosh (Mac OS X Edition)” by Dave Mark. Whether you’re an experienced C programmer or you’re coming from a different language such as C++ or Java, leading Mac experts Mark Dalrymple and Scott Knaster show you how to harness the powers of Objective-C in your applications. The new title is available as an eBook for US$14.95 and a printed softcover edition for $29.95. A free preview is also available for download.