UK - Childrens Seek and Find - fantasy book

Can you help me please find a book that I read as a child in the mid 1990s in the UK. It was a seek and find/eye spy sort of book, themed around a fantasy setting forest, goblins etc. I think it had a black cover, it was a large, hardback book and was illustrated. I know it's not a lot to go on. Any help greatly appreciated.