Jack Nutting has been using Cocoa since the olden days, long before it was even called Cocoa. He has used Cocoa and its predecessors to develop software for a wide range of industries and applications, including gaming, graphic design, online digital distribution, telecommunications, finance, publishing, and travel. When he is not working on Mac or iOS projects, he is developing web applications with Ruby on Rails. Nutting is a passionate proponent of Objective-C and the Cocoa frameworks. At the drop of a hat, he will speak at length on the virtues of dynamic dispatch and run time class manipulations to anyone who will listen (and even to some who won t). Nutting is the primary author of Learn Cocoa on the Mac (Apress, 2010) and Beginning iPad Development for iPhone Developers (Apress, 2010). He blogs from time to time at Nuthole.com.
Dave Mark is a longtime Mac developer and author who has written a number of books on Mac and iOS development, including Beginning iPhone 4 Development (Apress, 2010), More iPhone 3 Development (Apress, 2010), Learn C on the Mac (Apress, 2008), The Macintosh Programming Primer series (Addison-Wesley, 1992), and Ultimate Mac Programming (Wiley, 1995). Dave loves the water and spends as much time as possible on it, in it, or near it. He lives with his wife and three children in Virginia.
As the founder of Electric Butterfly, strongDave Wooldridge/strong has been developing award-winning web sites and software for 15 years. When he's not creating Mac and iPhone apps, he can be found writing. Dave is the author of emThe Business of iPhone App Development: Making and Marketing Apps that Succeed/em and has written numerous articles for leading tech publications, including a monthly software marketing column for emMacTech Magazine/em. Follow Dave on Twitter @ebutterfly.