1. English Author: Arthur Conan Doyle.

2. Arthur Conan Doyle was born on 22(nd) May 1859 in Edinburgh,Scotland.He was a Scottish physician and writer who is most noted for his fictional stories about the detective Sherlock Holmes, which are generally considered milestones in the field of crime fiction. He is also known for writing the fictional adventures of a second character he invented, Professor Challenger, and for popularising the mystery of the Mary Celeste.He was a prolific writer whose other works include fantasy and science fiction stories, plays, romances, poetry, non-fiction, and historical novels.

3. His father,Charles Altamont Doyle, was born in England,and his mother,Mary, was Irish Catholic.In 1864 the family dispersed due to Charles's growing alcoholism and the children were temporarily housed across Edinburgh. In 1867, the family came together again and lived in squalid tenement flats at 3 Sciennes Place.In 1879 he composed his first novels, The Mystery of Cloomber, not published until 1888, and the unfinished Narrative of John Smith, which would go unpublished until 2011.

4. The brilliant Dottor Bell,whose cold personality scientific method and deductive abilities inspired Sherlock Holmes' character,so it has a link with the medical thriller. The whole life of Doyle is a long series of hard-fought crusades of which spiritualism was only the last.He opened a medical practice that had limited success,it was in that period that Doyle began to write the adventures of Sherlock Holmes which began to have success among the British public. The first novel about the detective Sherlock Holmes was 'A study in Scarlet' in which the narrator is Dr. Watson that in a sense is the author himself.In 1885 Doyle married Louisa Hawkins, the sister of one of his patients.She suffered from tuberculosis and died on 4 July 1906.The following year he married Jean Elizabeth Leckie. He died of a heart attack at the age of 71.

5. Boero, Bulla, Fabbrini, Ferrando, Gazzo, Trudu.