| Abbots Langley Library | Children's non-fiction | C 612.6 | Missing copy (Set: 29 Jul 2019) |
| Adeyfield Library | Children's non-fiction | C 612.6 | Available |
| Baldock Library | Children's non-fiction | C 612.6 | Available |
| Berkhamsted Library | Children's non-fiction | C 612.6 | Available |
| Bishops Stortford Library | Children's non-fiction | C 612.6 | Available |
| Borehamwood Library | Children's non-fiction | C 612.6 | Available |
| Bovingdon Community Library | Children's non-fiction | C 612.6 | Available |
| Brookmans Park Community Library | Children's non-fiction | C 612.6 | Available |
| Buntingford Library | Children's non-fiction | C 612.6 | Available |
| Bushey Library | Children's non-fiction | C 612.6 | Available |
| Cheshunt Library | Children's non-fiction | C 612.6 | Onloan - Due: 10 Oct 2017Lost copy (Set: 12 Jan 2018) |
| Chorleywood Community Library | Children's non-fiction | C 612.6 | Available |
| Croxley Green Library | Children's non-fiction | C 612.6 | Available |
| Cuffley Community Library | Children's non-fiction | C 612.6 | Available |
| Goffs Oak Community Library | Children's non-fiction | C 612.6 | Available |
| Harpenden Library | Children's non-fiction | C 612.6 | Available |
| Hatfield Library | Children's non-fiction | C 612.6 | Available |
| Hemel Hempstead Library | Children's non-fiction | C 612.6 | Available |
| Hertford Library | Children's non-fiction | C 612.6 | Available |
| Hitchin Library | Children's non-fiction | C 612.6 | Available |
| Hoddesdon Library | Children's non-fiction | C 612.6 | Available |
| Kings Langley Community Library | Children's non-fiction | C 612.6 | Available |
| Knebworth Community Library | Children's non-fiction | C 612.6 | Available |
| Letchworth Library | Children's non-fiction | C 612.6 | Available |
| Leverstock Green Community Library | Children's non-fiction | C 612.6 | Available |
| London Colney Community Library | Children's non-fiction | C 612.6 | Available |
| Marshalswick Library | Children's non-fiction | C 612.6 | Available |
| North Watford Library | Children's non-fiction | C 612.6 | In-transit from Abbots Langley Library to North Watford Library (Set: 06 Jul 2024) |
| Oakmere Library | Children's non-fiction | C 612.6 | Available |
| Oxhey Library | Children's non-fiction | C 612.6 | Available |
| Radlett Library | Children's non-fiction | C 612.6 | Available |
| Redbourn Community Library | Children's non-fiction | C 612.6 | Available |
| Rickmansworth Library | Children's non-fiction | C 612.6 | Available |
| Royston Library | Children's non-fiction | C 612.6 | Available |
| Sawbridgeworth Community Library | Children's non-fiction | C 612.6 | Available |
| St Albans Library | Children's non-fiction | C 612.6 | Available |
| Stevenage Central Library | Children's non-fiction | C 612.6 | Available |
| Stevenage Old Town Library | Children's non-fiction | C 612.6 | Available |
| Tring Library | Children's non-fiction | C 612.6 | Available |
| Waltham Cross Library | Children's non-fiction | C 612.6 | Available |
| Ware Library | Children's non-fiction | C 612.6 | Available |
| Watford Central Library | Children's non-fiction | C 612.6 | Onloan - Due: 16 Nov 2017Lost copy (Set: 23 Jan 2018) |
| Welwyn Community Library | Children's non-fiction | C 612.6 | Available |
| Welwyn Garden City Library and Information Service | Children's non-fiction | C 612.6 | Available |
| Wheathampstead Community Library | Children's non-fiction | C 612.6 | Available |
| Woodhall Library | Children's non-fiction | C 612.6 | Available |