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Joe Keeley is a Partner and iOS Engineering Manager with MartianCraft, and co-author of the books “Mastering iOS Frameworks” and "iOS Components and Frameworks, Understanding the Advanced Features of iOS" from Addison-Wesley. Joe has led teams to build and update a number of very successful iOS apps for clients, including two that were acquired. Joe frequently presents development topics at conferences and developer meetings, and is the author of two instructional iOS development videos produced by Addison-Wesley Professional.