Computer Graphics, on the other hand, is very good indeed. After a brief introduction to the machine and its display, it launches into character pictures and soon goes on to pixels and graphs. The latter part of the book really takes off with scaling and transformation of images as well as animation, windows and 3D perspective.

The beginner may find some of the theory hard to follow, but for anyone who's progressed beyond the basics in Basic, this is a treasure. Even if you don't have an IBM, you could get this book and adapt the routines for yourself.

Bryan Skinner