While a bit awkward, it will fit in a shirt pocket or, opened, in a file folder. It fits quite nicely in a suit jacket inside pocket for those going out on service calls.
Most prices appear to range between three and ten dollars.
The material is generally well chosen and useful. For most quick reference these will be much handier than full documentation. The layout is good, with logical divisions between boxed groups of commands or information tables. Unfortunately, there are oddities, vagaries and outright errors. The MS-DOS summary lists CON only as the console screen, PRN only as LPT1 and fails to mention that a .COM file is executable.