Think Roald Dahl and you will be instantly transported back to your childhood - to tales of Charlie and the Chocolate Factory, Matilda and The BFG.
But Dahl was so much more than the author we have come to know and love. He was a pilot, inventor and - some say - even a spy.
To mark the centenary of Roald Dahl’s birth in Cardiff, ITV Wales has been delving deep into the author’s Welsh roots, uncovering the life he led and the legacy he left behind.
Born in Llandaff in 1916 , Roald Dahl was christened at the Norwegian Church in Cardiff Bay.
He later attended Llandaff Cathedral School, where he and his friends staged the famous, 'great and daring mouse plot' at Mrs Pratchett's sweet shop.
After leaving Wales and following the outbreak of World War Two, Dahl joined the Royal Air Force at the age of 23.
Posted to Libya, Dahl was severely injured when his fighter plane crashed in the western desert of north Africa.
No longer able to fly, the 26 year old returned to England, and after moving to the village of Great Missenden in Buckinghamshire, began writing the wonderful stories we know and love.
Throughout Dahl's incredible life, he was affected by serious illness and tragedy.
Following his death in 1990, his widow Felicity set up Roald Dahl's Marvellous Children's Charity, which continues to make life better for children in Wales and across the UK.
Find out more about the life and legacy of 'The Fantastic Mr Dahl' tonight at 8pm on ITV Wales.
Catch up afterwards itv.com/walesprogrammes