| Abbots Langley Library | Adult non-fiction | 914.670484 | Available |
| Bishops Stortford Library | Adult non-fiction | 914.670484 | Available |
| Borehamwood Library | Adult non-fiction | 914.670484 | Available |
| Harpenden Library | Adult non-fiction | 914.670484 | Onloan - Due: 03 Jun 2025 |
| Hatfield Library | Adult non-fiction | 914.670484 | Available |
| Hemel Hempstead Library | Adult non-fiction | 914.670484 | Available |
| Hertford Library | Adult non-fiction | 914.670484 | Onloan - Due: 02 Jun 2025 |
| Hitchin Library | Adult non-fiction | 914.670484 | Available |
| Hoddesdon Library | Adult non-fiction | 914.670484 | Available |
| Rickmansworth Library | Adult non-fiction | 914.670484 | Missing copy (Set: 01 Feb 2024)In-transit from Oxhey Library to Rickmansworth Library (Set: 12 Jan 2024) |
| St Albans Library | Adult non-fiction | 914.670484 | Available |
| Stevenage Central Library | Adult non-fiction | 914.670484 | Available |
| Tring Library | Adult non-fiction | 914.670484 | Onloan - Due: 22 Nov 2022Lost copy (Set: 24 Feb 2023) |
| Watford Central Library | Adult non-fiction | 914.670484 | Available |
| Welwyn Garden City Library and Information Service | Adult non-fiction | 914.670484 | Available |