Houghton Mifflin Harcourt books in order

5 books in the catalogue, about 67 hours of reading in all; the shortest takes 3 hours and the longest 28 hours.

5 standalone books in the catalogue.

Standalone books

Principles of Anatomy and Physiology 1975 22.9 h Journeys 2011 2.8 h Math in Focus 2014 2.6 h HMH Social Studies World History (2 editions) 2017 28.5 h Into Literature 2019 10.6 h