| Number Nine | |
| Author: | A. P. Herbert |
| Country: | United Kingdom |
| Language: | English |
| Genre: | Comedy |
| Publisher: | Methuen |
| Release Date: | 1951 |
| Media Type: | |
Number Nine: Or, The Mindsweepers is a 1951 comedy novel by the British writer A.P. Herbert. It was written as a parody of the Civil Service selection board and portrays several recruits attending a course at an assessment centre.[1] They gather at the ancestral home of an aristocratic admiral, much to his dismay.