Why We Broke Up is a novel written by Daniel Handler and illustrated by artist and designer Maira Kalman.
 It received a Michael L. Printz Honor and a feature film starring Hailee Steinfeld was in the works, and was meant to be released in early 2014.
Robert Ludlum (1927–2001) was an American author of twenty-seven novels between 1971 and 2006, the last being issued five years after his death.
 Of his twenty-seven novels, two were originally published under the pseudonym of Jonathan Ryder and another under the pseudonym of Michael Shepherd.
 Ludlum also created the "Covert-One" series, overseeing the first three novels with Gayle Lynds and Philip Shelby before his death.
 Following Ludlum's death, his estate has continued to publish novels under his name with eight authors having written a combined twenty-two novels under the Ludlum brand, a trademark inscription of "Robert Ludlum's" on every book (e.g. "Robert Ludlum's The Bourne Dominion").
 Since 2007, publishing rights in the United States have been held by Grand Central Publishing, taking over from St. Martin's Press who held the rights from 2000 to 2006.
The Bluebird Books is a series of novels popular with teenage girls in the 1910s and 1920s.
 The series was begun by L. Frank Baum using his Edith Van Dyne pseudonym, then continued by at least three others, all using the same pseudonym.
 Baum wrote the first four books in the series, possibly with help from his son, Harry Neal Baum, on the third.
 The fifth book is based on a fragment by Baum and written by an unknown author.
 The last five books were written by Emma Speed Sampson.
 The origin of the title is uncertain, but the books were all published in hardcover with blue cloth.
Hocus Bogus (French: Pseudo ) is a 1976 novel by the French writer Romain Gary, published under the pseudonym Émile Ajar.
 The book was written after Paul Pavlowitch, the son of Gary's cousin, had been presented as the man behind the pseudonym Ajar.
 It asserts to tell the story of Pavlowitch's literary experiences from his own perspective, and comments on the recent success with "The Life Before Us", the subsequent speculation that the author might be Gary, as well as explains his reclusiveness with the revelation that he has schizophrenia.
Carol Goodman, also known under the pseudonym Juliet Dark, is an American professor and author of gothic fiction.
 She has also written under the pseudonym Lee Carroll with her husband Lee Slominsky.
 Goodman currently serves as a creative writing professor at the State University of New York at New Paltz.
Phantom Lady is a 1942 crime novel written by American author Cornell Woolrich under the pseudonym "William Irish".
 It is the first novel Woolrich published under the William Irish pseudonym.
Tom Swift is the main character of five series of American juvenile science fiction and adventure novels that emphasize science, invention and technology.
 First published in 1910, the series total more than 100 volumes.
 The character was created by Edward Stratemeyer, the founder of the Stratemeyer Syndicate, a book-packaging firm.
 Tom's adventures have been written by various ghostwriters, beginning with Howard Garis.
 Most of the books are credited to the collective pseudonym "Victor Appleton".
 The 33 volumes of the second series use the pseudonym Victor Appleton II for the author.
 For this series, and some of the later series, the main character is "Tom Swift, Jr." New titles have been published as recently as 2007.
 Most of the various series emphasized Tom's inventions.
 The books generally describe the effects of science and technology as wholly beneficial, and the role of the inventor in society as admirable and heroic.
The work was written by P.R. Wouves.
 It was thought by Philadelphia book dealer W.D. De Witt that this author's name was a play on words and a pseudonym for Benjamin Franklin.
 He thought that the "P.R" stood for Poor Richard, a pseudonym Franklin used for "Richard Saunders" as the author of "Poor Richard's Almanack."
 Franklin had a reputation for using ciphers and codes in secret communications.
 The printer for this work was developed by Benjamin Franklin Bache, the grandson of Benjamin Franklin.
Daniel Handler (born February 28, 1970) is an American writer, musician and journalist.
 He is best known for his work under the pen name Lemony Snicket, having published children's series "A Series of Unfortunate Events" and "All the Wrong Questions" under this pseudonym.
 He has also published adult novels under his real name; his first book "The Basic Eight" was rejected by many publishers for its dark subject matter.
 His most recent book is "All the Dirty Parts".
 Handler has also played the accordion in several bands.
She Ventures and He Wins (1696) is a comedy in five acts by His Majesty's servants and written by a Young Woman under the pseudonym of "Ariadne".
 The author, who is referred to by most documents and historians by her pseudonym, caused an uproar between the theaters of the area and, because of her writing, this play helped to start the theatrical tradition of cross-dressing.
 Ariadne is noted as writing with humor and wit that matches that of her contemporaries.
 The original manuscript mentioned it was an adaptation of a "small novel", which has since been discovered to be "The Fair Extravagant" by Alexander Oldys, an unknown story that had been almost unheard of since its publication.
 Much of the plot remains the same with detail, some plot points, and characters changed.
 The main character in the Oldys text's name is Ariadne.

Question: Why We Broke Up was written by the author who has what pseudonym?
Answer: Lemony Snicket