Whether you’re identifying grasses for a Biodiversity Net Gain assessment, exploring freshwater habitats, or building your botanical knowledge, having the right guide at your side can make all the difference.
From 16 October to 7 December, we’re offering discounts on a range of our popular AIDGAP and Synopses of the British Fauna identification guides, giving you the perfect opportunity to expand your natural history library and strengthen your identification skills.
Save 25% on Selected AIDGAP Guides
For decades, AIDGAP (Aids to Identification in Difficult Groups of Animals and Plants) has helped people confidently identify some of the UK’s trickiest species groups.
Designed for non-specialists aged 16+, AIDGAP guides use accessible identification keys and are extensively tested by both beginners and experts before publication. Clear illustrations, straightforward language and practical layouts make them invaluable companions in the field and at home.
Sale Titles
| Guide | Was | Now |
| Beetles AIDGAP | £9 | £5 |
| Sphagnum Mosses AIDGAP | £7 | £5 |
| Water Plants AIDGAP | £10 | £7.50 |
| Freshwater Invertebrates AIDGAP | £10 | £7.50 |
| Ferns AIDGAP | £11 | £8 |
| Land Snails AIDGAP | £12 | £9 |
| Orthoptera and Dermaptera AIDGAP | £12.50 | £9 |
| Micro Ladybirds AIDGAP | £15 | £11 |
| Slugs AIDGAP | £16.50 | £12 |
| Grasses AIDGAP | £18 | £13.50 |
| Adult Caddis AIDGAP | £20 | £15 |
| Sedges AIDGAP | £35 | £18 |
Trusted by Naturalists and Professionals
Many of these guides have become essential resources for ecologists, students and wildlife enthusiasts alike.
One reviewer of Ferns AIDGAP commented:
“This is an excellent key to ferns. Bought this because my old copy literally fell to pieces after many years’ use. I have tried other similar guides, but this is still the best. The illustrations are so much better than photos.”
The Grasses AIDGAP guide has also helped professionals build confidence with challenging plant groups:
“A great guide whilst completing habitat assessments for statutory BNG. Comprehensive, easy to understand and follow. I’m a batman so wanted some help with my botanical knowledge and grasses have always been a problem… not any more!”
And for those interested in molluscs, one reviewer praised the Land Snails AIDGAP as an:
“Excellent field guide with detailed descriptions and illustrations. Don’t buy it if you’re looking for something with lots of pretty images, this is a no-nonsense guide book and it’s really good.“
Special Offers on Synopses of the British Fauna
We’re also offering discounted prices across selected titles in the Synopses of the British Fauna series, with prices now ranging from £13 to £33.
Available titles include:
- Centipedes
- Earthworms
- Shallow-water Crabs
- Sea-spiders
- Marine Gastropods
- Intertidal Marine Isopods
- Copepods Parasitic on Fishes
- Marine Planktonic Ostracods
- Polychaetes: Interstitial Families
Published by the Field Studies Council on behalf of the Linnean Society since 1993, the series provides authoritative identification guides for specialist animal groups.
Each volume bridges the gap between standard field guides and highly specialised academic monographs, making them invaluable references for professional ecologists, advanced students, researchers and dedicated naturalists.
Suitable for both field and laboratory use, the books are designed to be as user-friendly as possible, with technical terminology kept to a minimum and supported by glossaries. However, because of the complexity of the groups covered, they are generally best suited to more experienced practitioners.
Don’t Miss Out
Whether you’re brushing up on your botanical skills, tackling difficult invertebrate groups, or expanding your professional reference library, this limited-time sale offers excellent value on some of the UK’s most trusted identification resources.
The sale runs from 16 October to 7 December, so don’t miss your chance to save on expert guides. Browse the sale and find your next identification guide today.