The Working Spectrum, by David Lawrence, is the handiest book about the Sinclair computer to appear so far. It charts the design of a series of routines, such as a filing system, an accounting program, a banking program and a graphic designer.
Each of the programs includes a discussion on how it works and the various techniques used, such as sorting and searching in the filing program. Each of the routines has been designed so that they can be used separately or in your own programs.
The book covers business uses, education and, of course, games. On the cover it indicates that it is volume one and I look forward to seeing the rest of the series. The Working Spectrum costs £5.95 and is published by Sunshine Books.