The GDA works to increase awareness and understanding of dyslexia and to provide information, education and support to dyslexic people and parents and teachers of dyslexic children in Gloucestershire. 

The GDA was established in 1971 and is run by an executive committee. It is affiliated to the British Dyslexia Association.

The following services are offered:

• Support and advice for adults and children via the Helpline 07963 932966
• Assessment by specialist teachers. An assessment will be necessary for anyone wishing to take up a place in a GDA workshop, unless they already have one.
• Saturday morning tuition during school term time, providing multi-sensory one-to-one tuition with fully qualified specialist teachers in centres across the county.
• Information evenings on subjects of interest to parents, teachers and others involved or interested in dyslexia.
• Details of qualified Specialist Teachers.