| Harpenden Library | Adult non-fiction | 912.423Maps | Available |
| Hemel Hempstead Library | Adult non-fiction | 912.423Maps | Available |
| Hertford Library | Adult non-fiction | 912.423Maps | Available |
| Letchworth Library | Adult non-fiction | 912.423Maps | Available |
| Oakmere Library | Adult non-fiction | 912.423Maps | Available |
| Oxhey Library | Adult non-fiction | 912.423Maps | Available |
| Rickmansworth Library | Adult non-fiction | 912.423Maps | In-transit from Berkhamsted Library to Rickmansworth Library (Set: 04 Jul 2025) |
| Royston Library | Adult non-fiction | 912.423Maps | Onloan - Due: 18 Jul 2025 |
| Stevenage Central Library | Adult non-fiction | 912.423Maps | Available |
| Welwyn Garden City Library and Information Service | Adult non-fiction | 912.423Maps | Not for loan (Set: 06 Nov 2013) |