▰ Sources. 〓 Books [B] ⚫ UK. Harcourt (publisher) United States publishing firm Houghton Mifflin acquired Harcourt in 2007. It incorporated the Harcourt name to form Houghton Mifflin Harcourt. As of 2012, all Harcourt books that have been re-released are under the Houghton Mifflin Harcourt name. The Harcourt Children's Books division left the name intact on all of its books under that name as part of HMH. The first-created component of what would eventually become Harcourt was the World Book Company (unrelated to the Chicago-based World Book, Inc. publisher of reference works), which opened its first office in Manila in 1905 and published English-language educational materials for schools in the Philippines. World Book Company became the first publisher of group-administered tests measuring mental ability when it published Otis's Group Intelligence Scale in 1918. This strategic action improved the position of Harcourt Brace because World Book was an established elementary textbook publisher and test publisher.
Company History.