The core of the collection is the personal library of Jane Grigson. This collection, primarily of books and pamphlets, closely reflects the culinary themes that underpinned her writing. The collection also includes Grigson's personal notebooks (containing research notes), draft articles (many of which were published in The Observer newspaper) and a small amount of correspondence. In addition to this, the Jane Grigson Trustees continuously add book stock to complement and update the core collection.
A further collection of gastronomy books were donated by Prue Leith. The Prue Leith collection also contains a number of books that had belonged to the writer Maggie Black.