55 books • 30 series
Practical Micro Book (Usborne Computers & Electronics)
Expanding Your Micro (Usborne Computers & Electronics)
The Mystery of Silver Mountain (Complete Computer Adventures)
Computer Graphics (Usborne Computers & Electronics)
Practical Things to Do with a Microcomputer (Usborne Computers & Electronics)
Beginner's Computer Handbook (Usborne Computers & Electronics)
Guide to Understanding the Micro (Usborne Computers & Electronics)