Question: Who illustrated the book in which the film "Ferdinand" is based on?
Context: Manga Hero is an American publisher based in San Rafael, California that publishes graphic novels influence by Japanese manga.  The company’s stories typically involve heroic characters that usually come from a Jewish or Christian background.  Manga Hero’s current publications include "Paul: Tarsus to Redemption", written by Matthew Salisbury and Gabrielle Gniewek, as well as "Judith: Captive to Conqueror" and "Many Are Called" both written by Gabrielle Gniewek.  The writers are from John Paul the Great Catholic University in San Diego.  Sean Lam illustrated both series and lives in Singapore.  Sean also illustrated a single volume comic titled "It Takes a Wizard" published by Seven Seas Entertainment in 2009.  The organizers of World Youth Day 2011 recently announced that Manga Hero will launch a special comic titled "Habemus Papam!"  where 300,000 copies will be distributed during the event in Madrid.  This comic chronicles the life of Pope Benedict XVI and will be published in English and Spanish.  Manga Hero hired Regina Doman in 2012 to write a more detailed graphic novel biography of Pope Benedict XVI, also illustrated by Sean Lam, based on the World Youth Day 2011 book and also titled "Habemus Papam!"  In 2014, the publisher developed a full color graphic novel about Pope Francis written by Regina Doman and illustrated by Sean Lam.  Manga Hero is also developing graphic novels on Pope John Paul II and Maximilian Kolbe. The Mousehole Cat is a children's book written by Antonia Barber and illustrated by Nicola Bayley.  Based on the legend of Cornish fisherman Tom Bawcock and the stargazy pie, it tells the tale of a cat who goes with its owner on a fishing expedition in rough seas.  The book has won awards, including the 1991 British Book Award for Illustrated Children's Book of the Year.  It has since been adapted into a 1994 animated film, a puppet show and is being adapted as a stage musical. Ferdinand is an upcoming 2017 American 3D computer-animated comedy film produced by Blue Sky Studios and 20th Century Fox Animation.  It is based on Munro Leaf's children's book "The Story of Ferdinand" and directed by Carlos Saldanha, and stars the voices of John Cena, Kate McKinnon, Gina Rodriguez, Daveed Diggs, Gabriel Iglesias, Bobby Cannavale, David Tennant, and Anthony Anderson. Manga Bible (新約聖書 , Shinyaku Seisho ) is a five-volume manga series based on the Christian Bible created under the direction of the non-profit organization Next, a group formed by people from the manga industry.  Though first published in English, the books are originally written in Japanese and each volume is illustrated by a Japanese manga artist.  Each book is adapted from the Bible by Hidenori Kumai.  The first two books were illustrated by manga artist Kozumi Shinozawa, while the remaining three will be illustrated by a different artist.  The first book in the series, "Manga Messiah" was published in 2006 and covered the four gospels of the Bible: Matthew, Mark, Luke, and John.  "Manga Metamorphosis" (2008) covers the events in Acts and several of Paul's letters.  "Manga Mutiny" (2008, 2009) begins in Genesis and ends in Exodus.  "Manga Melech" (2010) picks up where "Manga Mutiny" left off and continues into the reign of David.  The fifth, and currently final book, "Manga Messengers" (2011) addresses events starting with the reign of King Solomon and takes stories from several of the major and minor prophets, and the Book of Esther and concludes with anticipation of a messiah. Zathura is an illustrated children's book by the American author Chris Van Allsburg as well as the title of a 2005 film based on the book.  Two boys are drawn into an intergalactic adventure when their house is magically hurled through space.  The book is a sequel to "Jumanji", another illustrated book by Van Allsburg, and references are made, both visual and textual, to "Jumanji". My Dad, John McCain is an illustrated children's book based on the life of John McCain.  Written by his daughter, Meghan McCain, and published through Aladdin Paperbacks, it was released on September 2, 2008.  The book's images were illustrated by Dan Andreasen.  The book was intended to support John McCain's candidacy for President of the United States in 2008. Ferdinand the Bull is a 1938 American stand-alone animated short produced by Walt Disney Productions and released on November 25, 1938 by RKO Radio Pictures.  It was directed by Dick Rickard and based on the book, "The Story of Ferdinand" by Munro Leaf.  The music was by Albert Hay Mallotte, most known for the setting of The Lord's Prayer sung commonly at weddings. Gazu Hyakki Yagyō (画図百鬼夜行 , ""The Illustrated Night Parade of a Hundred Demons"" or "The Illustrated Demon Horde's Night Parade") is the first book of Japanese artist Toriyama Sekien's famous "Gazu Hyakki Yagyō" e-hon tetralogy, published in 1776.  Although the title transliterates into "The Illustrated Night Parade of a Hundred Demons," it is based on an idiom, "hyakki yagyō," that is akin to pandemonium in English and implies an uncountable horde. The Wakan Sansai Zue (和漢三才図会 , lit.  "Illustrated Sino-Japanese Encyclopedia") is an illustrated Japanese "leishu" encyclopedia published in 1712 in the Edo period.  It consists of 105 volumes in 81 books.  Its compiler was Terashima or Terajima (Terajima Ryōan (寺島良安 ) ), a doctor from Osaka.  It describes and illustrates various activities of daily life, such as carpentry and fishing, as well as plants and animals, and constellations.  As seen from the title of the book (和 (wa), which means Japan and (漢 (kan), which means China), Terajima's idea was based on a Chinese encyclopedia, specifically the Ming work "Sancai Tuhui" ("Pictorial..." or "Illustrated Compendium of the Three Powers") by Wang Qi (1607), known in Japan as the "Sansai Zue" (三才図会 ) .  Reproductions of the "Wakan Sansai Zue" are still in print in Japan. The Story of Ferdinand (1936) is the best known work written by American author Munro Leaf and illustrated by Robert Lawson.  The children's book tells the story of a bull who would rather smell flowers than fight in bullfights.  He sits in the middle of the bull ring failing to take heed of any of the provocations of the matador and others to fight.
Answer: Robert Lawson