Johanna Spyri was born in a country village in Switzerland in 1827. Her father was a doctor and she had five brothers and sisters.

Later she moved to the capital Zurich to go to school and she eventually settled there with her husband Bernhard,who was a lawyer. Johanna began writing in 1871 and wrote many stories which quickly became very popular.

Her husband and son both died tragically in 1884, but Johanna consoled herself with charity work and writing, as well as looking after her orphaned niece.

She died in her Swiss village home in 1903. Heidi is Johanna Spyri's best known and most popular novel - it has been translated from German into over fifty languages and over fifty million copies have been sold worldwide.

Charles Dickens was born in 1812 and became the most popular novelist of the Victorian era.

A prolific writer, he published more than a dozen novels in his lifetime, including Oliver Twist, Great Expectations and Hard Times, most of which have been adapted many times over for radio, stage and screen.

Louisa May Alcott was born on 29 November 1832 in Pennsylvania, and she grew up with plenty of books to read but seldom enough to eat. Louisa went to work when she was very young as a paid companion and teacher, but she loved writing most of all, and like Jo March she started selling sensational stories in order to help provide financial support for her family.

She worked as a nurse during the American Civil War but the experience made her extremely ill. Little Women was published in 1868 and was based on her life growing up with her three sisters. She followed it with three sequels, Good Wives (1869), Little Men (1871) and Jo's Boys (1886) and she also wrote other books for both children and adults. Louisa was also a campaigner for women's rights and the abolition of the slave trade. She died on 6 March 1888.

Frances Hodgson Burnett was born in Manchester in 1849 and moved to America in 1865, where she launched a literary career in which she produced over forty books including A Little Princess (1905) and The Secret Garden (1911). Frances died in 1924.

Anna Sewell was born in 1820 and lived with her family in Norfolk and then in a village on the outskirts of London. At the age of fourteen Anna injured her ankles in a fall, and was severely disabled for the rest of her life.

She had to travel everywhere in horse-drawn carriages, and so Anna was always concerned with the treatment of the animals she so relied upon.

She wrote Black Beauty in order to convince a wide audience of the importance of the humane treatment of animals. It is her only novel, and Anna Sewell died shortly after it's publication, little guessing how well-known and widely loved her story would become.

Kenneth Grahame was born in 1859 and wrote fiction and fantasy for children.

He is most famous for The Wind in the Willows (1908), which is considered to be one of the greatest classics of children's literature.

He also wrote The Reluctant Dragon which was later adapted to a Disney movie.

Lyman Frank Baum, born May 15 1856, was an American author of children's books, best known for writing The Wonderful Wizard of Oz. He wrote thirteen novel sequels, nine other fantasy novels, and a host of other works (55 novels in total, plus four "lost" novels, 83 short stories, over 200 poems, an unknown number of scripts, and many miscellaneous writings), and made numerous attempts to bring his works to the stage and screen.

His works anticipated such century-later commonplaces as television, augmented reality, laptop computers (The Master Key), wireless telephones (Tik-Tok of Oz), women in high risk, action-heavy occupations (Mary Louise in the Country), and the ubiquity of advertising on clothing (Aunt Jane's Nieces at Work).

On May 5, 1919, Baum suffered from a stroke. He died quietly the next day, nine days short of his 63rd birthday.His final Oz book, Glinda of Oz, was published on July 10, 1920, a year after his death. The Oz series was continued long after his death by other authors, notably Ruth Plumly Thompson, who wrote an additional nineteen Oz books.

J. M. Barrie (1860-1937) was fascinated by stories of his mother's life. He was determined to write, and worked on the Nottingham Journal after graduating from Edinburgh University.

In 1885 he successfully sold the Auld Licht Idylls, which were based on his mother's tales. By the time Peter Pan opened on the London stage in 1904, Barrie had written more than thirty novels and plays, such as Quality Street and The Admirable Crichton. He was created a baronet in 1913 and awarded the Order of Merit in 1922.

Lucy Maud Montgomery was born on Prince Edward Island, Canada, in 1874. Anne of Green Gables, published in 1908, was her first novel and has remained in print across the world ever since. Montgomery died in Toronto in 1942.