| Adeyfield Library | Adult non-fiction | 650.1 | Available |
| Brookmans Park Community Library | Adult non-fiction | 650.1 | Available |
| Cuffley Community Library | Adult non-fiction | 650.1 | Onloan - Due: 21 Jul 2025 |
| Goffs Oak Community Library | Adult non-fiction | 650.1 | In-transit from Welwyn Garden City Library and Information Service to Goffs Oak Community Library (Set: 02 Feb 2021) |
| Kings Langley Community Library | Adult non-fiction | 650.1 | Available |
| Knebworth Community Library | Adult non-fiction | 650.1 | Onloan - Due: 11 Aug 2025 |
| Leverstock Green Community Library | Adult non-fiction | 650.1 | Onloan - Due: 20 Jan 2024Lost copy (Set: 22 Apr 2024) |
| Redbourn Community Library | Adult non-fiction | 650.1 | Available |
| Sawbridgeworth Community Library | Adult non-fiction | 650.1 | Available |
| Stevenage Old Town Library | Adult non-fiction | 650.1 | Available |
| Welwyn Community Library | Adult non-fiction | 650.1 | Available |