Conor McGuinness appointed Vice President, International Finance and Operations at Houghton Mifflin Harcourt

DUBLIN, Ireland — January 27, 2011 — Global education leader Houghton Mifflin Harcourt (HMH) is pleased to announce the appointment of Conor McGuinness as Vice President of International Finance and Operations. Based in the Company's Dublin office, Conor will be responsible for all financial and operational aspects of HMH's International business (outside the US), focusing on growth across emerging markets such as the Middle East, Asia Pacific and Latin America. HMH's educational products and solutions are already used by 57 million students in more than 120 countries globally, and the Company is continuing to break into new markets. In recent months, the International business has opened a new Asia-Pacific hub in Seoul, South Korea and secured multi-million-dollar expansion deals in a number of countries in the Middle East region. "With 13 years corporate finance, accountancy and investment experience, Conor possesses the expertise and leadership skills necessary to assist the business in achieving its global growth strategy. As part of the senior management team, Conor will provide financial, operational and strategic direction as we expand the International business," said Terry Nealon, Executive Vice President, HMH. Michael Muldowney, Chief Financial Officer, HMH, added: "Conor will play a key role in implementing HMH's ambitious international growth plans as we rapidly expand our services, technology and curricula in markets all over the world." Conor is a chartered accountant and qualified tax professional, having previously worked in KPMG. He also holds a Masters of Accounting from Smurfit Business School, University College Dublin and a B-Commerce Degree from University College Dublin. Conor was recently appointed to the IRFU's Professional Game Board to oversee the commercial development of rugby in Connacht. About Houghton Mifflin Harcourt  Houghton Mifflin Harcourt is a global education and learning company that is leading the way with innovative solutions and approaches to the challenges facing education today. The world's largest provider of educational products and solutions for pre-K–12 learning, Houghton Mifflin Harcourt develops and delivers interactive, results-driven learning solutions that advance teacher effectiveness and student achievement. Through curricula excellence and technology innovation, Houghton Mifflin Harcourt collaborates with school districts, administrators, teachers, parents and students. Today, HMH education products and services are used by 57 million students throughout all 50 U.S. states and 120 countries. With origins dating back to 1832, the Company also publishes an extensive line of reference works and award-winning literature for adults and young readers. For more information, visit www.hmhpub.com.