John Earl Clark - Creating Mobile Apps with Sencha Touch 2

John Earl Clark holds a Master's degree in Human Computer Interaction from Georgia Tech and an undergraduate degree in Music Engineering from Georgia State University. John and his co-author, Bryan P. Johnson, worked together at MindSpring and later EarthLink, starting out in technical support and documentation, before moving into application development, and finally management of a small development team. After leaving EarthLink in 2002, John began working independently as a consultant and programmer, before starting Twelve Foot Guru, LLC with Bryan in 2005.

John has been working with Sencha Touch since the first early beta releases. He has also worked with Sencha's ExtJS since the early days when it was still known as YUI-Ext. John has also written a previous book with Bryan Johnson called Sencha Touch Mobile JavaScript Framework by Packt Publishing.

When he is not buried in code, John spends his time woodworking, playing the guitar, and brewing his own beer.

I would like to thank my family for all of their love and support. I would also like to thank Bryan for his help, his patience, and his continued faith in our efforts.

Bryan P. Johnson is a graduate of the University of Georgia. Bryan went on to work for MindSpring Enterprises in late 1995, where he met his co-author John Clark.

At MindSpring, and later EarthLink, for over seven years, Bryan served in multiple positions, including Director of System Administration and Director of Internal Application Development. After leaving EarthLink, Bryan took some time off to travel before joining John in starting Twelve Foot Guru.

Bryan has worked with Sencha's products since the early days of YUI-EXT, and has used Sencha Touch since its first betas. Last year, he and John wrote their first Sencha Touch book, Sencha Touch Mobile JavaScript Framework by Packt Publishing.

I would like to thank my friends and family for their support and my co-author John for his patience during the creation of this book.

Kristian Kristensen is an independent software development consultant. Through his company Kristensen Inc., he takes on the role of teacher, coach, facilitator, and anything in between to help software shops improve their processes and skills. He is particularly interested in languages and how they shape our thoughts and problem solving abilities.

He worked as a consultant for Microsoft before embarking on the journey of freelance consulting. He holds a Master's in Software Engineering from Aalborg University and currently lives in Brooklyn, NY with his wife.

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