| Berkhamsted Library | Adult non-fiction | 940.47541 | Available |
| Bishops Stortford Library | Adult non-fiction | 940.47541 | Missing copy (Set: 23 May 2019) |
| Bushey Library | Adult non-fiction | 940.47541 | Available |
| Chorleywood Community Library | Adult non-fiction | 940.47541 | Available |
| Croxley Green Library | Adult non-fiction | 940.47541 | Available |
| Hemel Hempstead Library | Adult non-fiction | 940.47541 | Available |
| Leverstock Green Community Library | Adult non-fiction | 940.47541 | Available |
| Marshalswick Library | Adult non-fiction | 940.47541 | Missing copy (Set: 26 Nov 2018)In-transit from HALS to Marshalswick Library (Set: 26 Nov 2018) |
| Stevenage Central Library | Adult non-fiction | 940.47541 | Available |
| Welwyn Garden City Library and Information Service | Adult non-fiction | 940.47541 | Available |
| Woodhall Library | Adult non-fiction | 940.47541 | Available |