Sue Townsend, the British author who wrote the multi-million selling Adrian Mole series documenting the humdrum life of an awkward teenager, has died aged 68.

Her son Danny Townsend confirmed to the BBC on Friday that the novelist had died at her home on Thursday after a short illness.

After writing a series of well-received plays, Townsend was catapulted to mainstream fame when she released The Secret Diary of Adrian Mole, aged 13 3/4 in 1982.

Within three years, the book had sold close to two million copies and was followed in 1984 by The Growing Pains of Adrian Mole, which helped her to become Britain’s top-selling author of the 1980s.

Adrian Mole: The Prostrate Years, the last of the eight-part series, was released in 2009.

Townsend, who was born in the central England city of Leicester in 1946, lost her sight after being diagnosed with diabetes in the 1980s.

She underwent a kidney transplant in 2009, with her eldest son Sean donating one of his organs, and suffered a stroke over Christmas 2012.

WATCH: Below, Sue Townsend displays her wit during a ceremony at the University of Leicester in 2009: