Publishing shakeup: Houghton Mifflin Harcourt CEO Barry O'Callaghan resigns
The chief executive of Houghton Mifflin Harcourt, Barry O'Callaghan, has resigned. Houghton Mifflin Harcourt is one of the "big six" houses that are at the center of the American publishing industry.
Barry O'Callaghan, chief executive of the education publishing company Houghton Mifflin Harcourt, resigned Tuesday, slightly more than a year after Houghton underwent a major refinancing.
The company said that chief financial officer Michael Muldowney will serve as interim chief executive until the board selects a permanent successor.
O'Callaghan has been CEO of Houghton Mifflin Harcourt since 2009. The company is a major textbook vendor and has been hurt, in part, by state budget cuts affecting textbook sales.
On the literary side, the company's highest-profile author is Philip Roth.
-- Carolyn Kellogg