Title: Mercer Mayer
Content:  Mercer Mayer (born December 30, 1943) is an American children's author and illustrator. He has published over 300 books, using a wide range of illustrative styles. Mayer is best known for his Little Critter and Little Monster series of books.
Title: Marianna Mayer
Content:  Marianna Mayer (born in New York City on November 8, 1945) is a well-known children’s book writer and artist from Roxbury, Connecticut. Her early education was in the field of the visual arts. After one year of college, she became a student painter at the Art Students League in New York City. Her first book was published when she was nineteen years old. She is known for her retellings of folk and fairy tales. She is the author of Baba Yaga and Vasilisa the Brave and her written versions of Pegasus, and The Twelve Dancing Princesses. She was the first wife of the famous illustrator, Mercer Mayer.
Title: Matthew Mather
Content:  Matthew Mather is the author of a growing collection of work, often in the genre of apocalyptic and science fiction, but also in thriller and mystery/suspense.
Title: Paul Maar
Content:  Paul Maar (born 13 December 1937) is one of the most important modern German writers for children and young people. He is a novelist, playwright, translator and illustrator.
Title: Mercer Mayer
Content:  The following year, he married his second wife, Jo. The couple had three children: two sons, Len and Arden as well as a daughter named Jessie. Mayer and his third wife Gina, had two sons of their own (Ben and Zebulon). He currently lives in Roxbury, Connecticut. Gina collaborated with him on many of his books since the early 1990s. Gina died November 27, 2017 at age 51 due to illness. In addition to writing and illustrating his own books, Mayer has collaborated on many projects with other children's authors. He has illustrated books for John Bellairs, Jane Yolen, Jan Wahl, Jay Williams, and John D. Fitzgerald, among others.
Title: Bob Mayer (author)
Content:  Robert Mayer is a New York Times-bestselling author and the CEO of Cool Gus Publishing. He is a West Point graduate and former Green Beret. Mayer has authored over 60 novels in multiple genres, selling more than 4 million books, including the #1 series Area 51, Atlantis, and The Green Berets. He has written under the pen names Joe Dalton, Robert Doherty, Greg Donegan and Bob McGuire. He holds the distinction of being the only male author on the Romance Writers of America Honor Roll.
Title: Vladimír Mařík
Content:  Mařík is the author or co-author of more than 170 journal and conference papers, co-author or editor of 17 books (Springer Verlag, Kluwer Academic), co-author of 5 US patents. He acted as the Editor-in-Chief of the IEEE Trans. System, Man and Cybernetics, part C in 2005-2013. He is a member of the Editorial Board of the Czech mutation of the Scientific American magazine. In 2006, Mařík became a co-founder of the Czech Technical University Media Laboratory – Foundation established to support research carried out by students and young researchers. He has been acting as the Chairman of the Board of this Foundation since the very beginning.
Title: Eckehard Mayer
Content:  Three volumes of poetry, two diaries, and two novels by Mayer (2013 Ab jetzt ist es spät; 2016 Die Nähe Roman, 2 Erzählungen (2017 Der Spaziergang / Nach Rosmersholm have been published by Verlag Janos Stekovics.
Title: Mara Bergman
Content:  Mara Bergman is an American children's author, poet and editor. Born in Bronx, New York, on leap year day, she grew up in Wantagh, Long Island, and attended Wantagh High School and the University of the State of New York at Oneonta, spending her third year studying at Goldsmiths College, London. Mara moved to England in 1983, and soon began to work for the children’s publisher Walker Books. When her three children, Marissa, Eva and Jonathan, were young she decided to start writing picture books, and her awards include the BookTrust Early Years Award and the Stockport Prize. In 2014, Mara won the Mslexia Poetry Pamphlet Prize and her collection The Tailor's Three Sons and Other New York Poems was published by Seren in 2015. Her first full collection, The Disappearing Room, was published in 2018 by Arc Publications. Her children's books have been translated into Finnish, French, German, Japanese, Korean and Hebrew.
Title: Miriam Marecek
Content:  Miriam Marecek (1940-2020) was an educational consultant and author specializing in the field of children's literature. She taught in the literacy field, as a professor at Harvard Graduate School of Education, Boston University, Wheelock College, Tufts University, and Bank Street College. Marecek was the past President of the Children's Literature and Reading section of the International Reading Association. She served as an Advisor to Boston City Hospital's Reach Out and Read program and The Electric Company (Children's Television Workshop). Her educational consultant credits include the award-winning family literacy program "Words That Cook", and the Emmy Award-winning children's TV series, A Likely Story. In 2014, she wrote her memoir, "Escape from Prague: Composing a New Life In America." Marecek was born in Prague, Czechoslovakia. She lived in Winchester, Massachusetts and has three children.

Question: Who is the author of MÄR?
Answer: Nobuyuki Anzai.