The Library is physically divided into two halves, serial and general publications, and county or country based material. There is material about most counties in England as well as on Wales, Scotland and Ireland. Subjects covered include history, archaeology, architecture, local studies, records, law, education, religion, cults and mythology, arts and crafts, coinage, industry and transport, genealogy and heraldry. The Society mainly concentrates on collecting material relating to Gloucestershire and its adjoining Counties (Herefordshire, Worcestershire, Warwickshire, Oxfordshire, Wiltshire, Somerset and Monmouthshire).