Tom Betsy Author

Dr. Tom Betsy is a faculty member at Bergen College, where he teaches microbiology, anatomy, and physiology, among other courses, in their nursing school. Dr. Betsy is widely respected for his unique way of simplifying complex topics. Jim Keogh is a Columbia University faculty member, and author of 3 books in the Demystified series, including Data Structures, OOP, and Java Demystified. Jim Keogh is on the faculty of Columbia University teaching courses in its technology certification program. He has spent 15 years developing computer systems for major Wall Street firms such as Salomen, Inc. and Bear Stearns and has written several best-selling books for Prentice Hall and IDG.