Computer Spy Games by Jenny Tyler and Chris Oxlade is a 1984 Usborne/Scholastic collection of type-in BASIC spy-themed programs for the Commodore 64, VIC-20, Apple, TRS-80, BBC Micro, Electron, and ZX Spectrum. Its games and activities include Spy Eyes, Searchlight, Robospy, Spy Q Test, Secret Message Maker, Rendezvous, and Morse Coder, allowing readers to test observation skills, avoid guards, track agents, decode messages, navigate an illustrated spy mission, and learn Morse code. Each program includes explanations, adaptation ideas, conversion lines for different computers, and puzzle answers, making it both an entertaining spy-game book and an accessible introduction to BASIC programming.