| 2000232 | Making the Most of Your Spectrum Micro Drives | - | English |
| 2000233 | Making the Most of Your ZX81 | - | English |
| 2000230 | Making the Most of the Sinclair QL: QL Superbasic and Its Applications | Sinclair QL | English |
| 2000909 | Making the most of Your Timex Sinclair 1500/1000 | - | English |
| 2001465 | Marvel Super Heroes: Computer Fun Book One | - | English |
| 2001466 | Marvel Super Heroes: Computer Fun Book Two | - | English |
| 2000557 | Maschinencode-Handbuch fur den ZX Spectrum | - | German |
| 2000235 | Master Your ZX Microdrive | - | English |
| 2001467 | Mastering CP/M | - | English |
| 2000237 | Mastering Machine Code on Your ZX Spectrum | - | English |
| 2000236 | Mastering Machine Code on Your ZX81 or ZX80 | - | English |
| 2000830 | Mastering Your Timex Sinclair 1000 Personal Computer | - | English |
| 2000480 | Mastering the ZX Spectrum | - | English |
| 2001221 | Mathematical Projects for the ZX Spectrum | - | English |
| 2000831 | Mathematics on the Sinclair QL | Sinclair QL | English |
| 2000922 | Mathematiques sur ZX 81 | - | French |
| 2000543 | Mathematische + Wissenschaftliche Programme in Basic | - | German |
| 2000580 | Mathematische Knobeleien mit und ohne Kleincomputer | - | German |
| 2000238 | Maths Tutor for the Spectrum | - | English |
| 2000239 | Maximize Your QL | Sinclair QL | English |