About the Authors

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Mark Guzdial is a Professor at the College of Computing at Georgia Tech, member of the GVU Center, and Director of the Collaborative Software Laboratory. His Prentice Hall books include Squeak: ObjectOriented Design with Multimedia Applications; Squeak: Open Personal Computing and Multimedia; and Introduction to Computing and Programming in Python: A Multimedia Approach.

Barbara J. Ericson is a highlyrated instructor for the College of Computing at Georgia Tech. She has taught continuing education and undergraduate courses for Georgia Tech and authored continuing education courses on Java and ObjectOriented Analysis and Design. Her current position is the Director of CS Outreach for the Institute for Computing Education (ICE) which works to improve computing education at the secondary level in Georgia. An ACM member, Ericson has worked at several leading industrial research labs, including General Motors Research Labs and Bell Communications Research.