| Abbots Langley Library | Adult non-fiction | 956.7 | Available |
| Bishops Stortford Library | Adult non-fiction | 956.7 | Available |
| Borehamwood Library | Adult non-fiction | 956.7 | Available |
| Buntingford Library | Adult non-fiction | 956.7 | Available |
| Harpenden Library | Adult non-fiction | 956.7 | Available |
| Hatfield Library | Adult non-fiction | 956.7 | Available |
| Hemel Hempstead Library | Adult non-fiction | 956.7 | Available |
| Hitchin Library | Adult non-fiction | 956.7 | Onloan - Due: 20 Jun 2025 |
| Hitchin Library | Adult non-fiction | 956.7 | Available |
| Hoddesdon Library | Adult non-fiction | 956.7 | Available |
| Letchworth Library | Adult non-fiction | 956.7 | Available |
| Radlett Library | Adult non-fiction | 956.7 | Available |
| St Albans Library | Adult non-fiction | 956.7 | Onloan - Due: 22 Jun 2025 |
| Stevenage Central Library | Adult non-fiction | 956.7 | Available |
| Waltham Cross Library | Adult non-fiction | 956.7 | Available |
| Ware Library | Adult non-fiction | 956.7 | Available |
| Watford Central Library | Adult non-fiction | 956.7 | Available |
| Welwyn Garden City Library and Information Service | Adult non-fiction | 956.7 | Available |
| Welwyn Garden City Library and Information Service | Adult non-fiction | 956.7 | Available |