Karen Blixen and Julian Barnes both used pseudonyms in their works.
Karen Blixen Baroness Karen Christenze von Blixen-Finecke (née Dinesen; 17 April 1885 – 7 September 1962) was a Danish author who wrote works in Danish and English. She is best known under her pen names Isak Dinesen, used in English-speaking countries, and Tania Blixen, used in German-speaking countries. She also published works using the aliases Osceola and Pierre Andrézel.
The Penny (novel) The Penny is a book authored by Joyce Meyer and Deborah Bedford. It was the first time either of the best-selling authors had co-authored a book. Although the book is fictional, it is based on the early life experiences of the co-author, Joyce Meyer, who was abused by her parents when she was a child. The novel was published by Hodder & Stoughton.