| Abbots Langley Library | Children's non-fiction | C 828.92 | Available |
| Baldock Library | Children's non-fiction | C 828.92 | In-transit from Letchworth Library to Baldock Library (Set: 21 Jan 2023) |
| Baldock Library | Children's non-fiction | C 828.92 | Available |
| Baldock Library | Children's non-fiction | C 828.92 | Available |
| Berkhamsted Library | Children's non-fiction | C 828.92 | Available |
| Berkhamsted Library | Children's non-fiction | C 828.92 | Available |
| Bishops Stortford Library | Children's non-fiction | C 828.92 | Onloan - Due: 24 May 2025 |
| Borehamwood Library | Children's non-fiction | C 828.92 | Onloan - Due: 21 May 2025 |
| Buntingford Library | Children's non-fiction | C 828.92 | Available |
| Bushey Library | Children's non-fiction | C 828.92 | Missing copy (Set: 23 Dec 2024) |
| Cheshunt Library | Children's non-fiction | C 828.92 | Available |
| Croxley Green Library | Children's non-fiction | C 828.92 | Onloan - Due: 14 May 2025 |
| Harpenden Library | Children's non-fiction | C 828.92 | Available |
| Hatfield Library | Children's non-fiction | C 828.92 | Available |
| Hemel Hempstead Library | Children's non-fiction | C 828.92 | Available |
| Hertford Library | Children's non-fiction | C 828.92 | Onloan - Due: 31 May 2025 |
| Hitchin Library | Children's non-fiction | C 828.92 | Available |
| Hoddesdon Library | Children's non-fiction | C 828.92 | Available |
| Letchworth Library | Children's non-fiction | C 828.92 | Onloan - Due: 17 May 2025 |
| Marshalswick Library | Children's non-fiction | C 828.92 | Available |
| North Watford Library | Children's non-fiction | C 828.92 | Onloan - Due: 23 May 2025 |
| Oakmere Library | Children's non-fiction | C 828.92 | Available |
| Oxhey Library | Children's non-fiction | C 828.92 | Available |
| Radlett Library | Children's non-fiction | C 828.92 | Available |
| Rickmansworth Library | Children's non-fiction | C 828.92 | Available |
| Royston Library | Children's non-fiction | C 828.92 | Available |
| St Albans Library | Children's non-fiction | C 828.92 | Onloan - Due: 15 May 2025 |
| St Albans Library | Children's non-fiction | C 828.92 | Onloan - Due: 09 Aug 2019Lost copy (Set: 13 Oct 2019) |
| Stevenage Central Library | Children's non-fiction | C 828.92 | Missing copy (Set: 12 May 2022) |
| Tring Library | Children's non-fiction | C 828.92 | Available |
| Waltham Cross Library | Children's non-fiction | C 828.92 | Available |
| Ware Library | Children's non-fiction | C 828.92 | Available |
| Watford Central Library | Children's non-fiction | C 828.92 | Available |
| Welwyn Garden City Library and Information Service | Children's non-fiction | C 828.92 | Onloan - Due: 28 May 2025 |