Autism is a lifelong developmental disability which impacts on communication and social interaction. And there are more than 500,000 people in the UK - roughly the erquivalent of one in 100 of the population - who have autism.
Autism is a ‘hidden' disability. In childhood it can be misinterpreted as naughtiness. In adulthood those with the condition can be misunderstood.
The Autism APPG brings together a number of MPs who share the aim of raising awareness of autism in parliament. It is chaired by MP Robert Buckland.
Jonathan Reynolds, who has family experience with regard to autism, has been a member of the group since 2010. He is currently one of the group's vice-chairs.
Commenting on his membership of the APPG Autism, Mr Reynolds said: "Autism is less obvious than some disabilities and can often be misinterpreted.
"As a result people with autism may not always receive the support they need. And their condition can go too long without being properly diagnosed.
"I do believe more needs to be done to ensure health and education services do not let down people with autism.
"And I hope that the work of this all party parliamentary group will help to raise greater awareness about this condition in Parliament and beyond."
In July last year, Mr Reynolds led a debate on trhe issues surrounding ‘Children and Adolescent Mental Health Services' in Westminster Hall which looked at diagnosis and services for people with autism and their families.
Jonathan is pictured at the launch of the National Autistic Society's launch of the Need to Know campaign in parliament