R. A. Penfold

Book #495: Easy Windows Troubleshooting

Book #503: Using Dreamweaver 4

Book #504: Using Flash 5

Book #507: Easy Internet Troubleshooting

Book #521: Easy Windows XP Troubleshooting

Book #49: Popular Electronic Projects

Book #56: Electronic Security Devices

Book #105: Aerial Projects

Book #177: An Introduction to Computer Communications

Book #179: Electronic Circuits for the Computer Control of Robots

Book #95: Model Railway Projects

Book #122: Audio Amplifier Construction

Book #147: An Introduction to 6502 Machine Code

Book #190: More Advanced Electronic Security Projects

Book #193: Logo for Beginners

Book #76: Power Supply Projects

Book #94: Electronic Projects for Cars and Boats

Book #98: Popular Electronic Circuits

Book #106: Modern Operational Amplifier Projects

Book #121: How to Design and Make Your Own Printed Circuit Boards