Houghton Mifflin Harcourt Company provides content, services, and technology solutions for educational institutions and consumers. It primarily delivers kindergarten through 12th grade (K-12) education content. The company operates in two segments, Education and Trade Publishing. The Education segment offers various comprehensive curriculum programs that focus on reading, literature and language arts, mathematics, science, world languages, and social studies for the pre-K-12 market; and comprehensive intervention solutions for assisting English language learners, as well as products providing incremental instruction in a particular subject area. It also provides professional books and developmental resources to pre-K-12 teachers; and consulting services, such as learning resources that are supported with professional development in classroom assessment, digital implementation, teacher effectiveness, and high-impact leadership. In addition, this segment offers district and state level solutions focused on cognitive and formative assessment tools, and platform solutions; sells educational solutions; and provides early learning services. The Trade Publishing segment develops, markets, and sells consumer books in print and digital format, as well as licenses book rights to other publishers and electronic businesses. This segment provides a library of general interest, young readers, and reference materials, including adult and children's fiction and non-fiction books. Houghton Mifflin Harcourt Company serves approximately 50 million students in approximately 150 countries worldwide. The company was formerly known as HMH Holdings (Delaware), Inc. and changed its name to Houghton Mifflin Harcourt Company in October 2013. Houghton Mifflin Harcourt Company was founded in 1832 and is headquartered in Boston, Massachusetts.