| 2000310 | QL Superbasic | Sinclair QL | English |
| 2000885 | QL Superbasic: A Programmer's Guide | Sinclair QL | English |
| 2000311 | QL Superbasic: The Definitive Handbook | Sinclair QL | English |
| 2000298 | Quantum Theory: A Guide to the Sinclair QL | Sinclair QL | English |
| 2000984 | Questions and Answers on Word Processing | - | English |
| 2000314 | Quick QL Machine Language | Sinclair QL | English |
| 2000299 | Quill, Easel, Archive & Abacus on the Sinclair QL: Integrating the Psion Software | Sinclair QL | English |
| 2001371 | RUN: Enciclopedia Practica del Spectrum | - | Spanish |
| 2000527 | Reasoned Programming | - | English |
| 2000319 | Replicating Reality: Exploring Computer Simulations | - | English |
| 2001702 | Robotisez votre ZX 81 | - | French |
| 2000553 | Rund um den Spectrum | - | German |
| 2001472 | SOFTWARE: Curso Practico de Programacion | - | Spanish |
| 2000844 | SP7 Companion Book Volume 1 | - | English |
| 2000845 | SP7 Companion Book Volume 2 | - | English |
| 2000712 | SPECTRUM: Iniciacion al Codigo Maquina | - | Spanish |
| 2001398 | Sam na sam z Jezykiem C | - | Polish |
| 2001159 | Scelbi's Secret Guide to Computers | - | English |
| 2000832 | Schnelles Rechnen mit dem ZX81 | - | German |
| 2001011 | Schnittstellen-Handbuch | - | German |