| 2000589 | Sturen met de Microprocessor | - | Dutch |
| 2000387 | Success in Software | - | English |
| 2001100 | Super Basic TK | - | Portuguese |
| 2000388 | Super Charge Your Spectrum | - | English |
| 2001315 | Super Programas Spectrum | - | Spanish |
| 2001316 | Super Programas em Basic e Código Máquina | - | Portuguese |
| 2000674 | SuperBASIC fur den Sinclair QL | Sinclair QL | German |
| 2001363 | T/S 2068 Basics and Beyond | - | English |
| 2000838 | TK-Calculando | - | Portuguese |
| 2000837 | TK-Divertindo | - | Portuguese |
| 2000836 | TK-Lembrando | - | Portuguese |
| 2000817 | TK82-C Programacao BASIC | - | Portuguese |
| 2001104 | TK85 Programacao Basic | - | Portuguese |
| 2000815 | TK90X Manual de Operação | - | Portuguese |
| 2001098 | TK95 Manual de Operação | - | Portuguese |
| 2001428 | TOOLKITS en Enkele Spelen voor de ZX Spectrum | - | Dutch |
| 2000395 | TTL Data Book volume 1 | - | English |
| 2000521 | TTL Data Book volume 2 | - | English |
| 2001056 | Tabellen zum Mikrorechnersystem U880 - Z80 | - | German |
| 2000390 | Taking the Quantum Leap: Using the Sinclair QL Computer | Sinclair QL | English |