Ronald Ridout (23 July 1916 – 5 December 1994)
Ruth Ainsworth (1908–1984)
The book series, published from the late 1960s to the 1970s, featured vibrant colors and was intended for children's independent reading. Ronald Ridout, known for his prolific writing, achieved such immense book sales, surpassing seventy million, that he was recognized in The Guinness Book of World Records.
The publisher of this series was Purnell.
The publisher of this series was Purnell.