Greg Perry has been a programmer and computer trainer for more than 10 years and he is renowned for his ability to explain complex computer topics to new users. He has authored many programming titles for Macmillan including Teach Yourself Visual Basic 5 in 24 Hours, Teach Yourself Microsoft Office 97 in 24 Hours, Teach Yourself Windows 95 in 24 Hours, and Visual Basic 4 in 12 Easy Lessons.