Home › Authors › Houghton Mifflin Harcourt Children's Group Staff 👤 Houghton Mifflin Harcourt Children's Group Staff 3 books Books by Houghton Mifflin Harcourt Children's Group Staff Reader Rabbit Let's Learn Kind Reader Rabbit Let's Learn Kindergarten Math 2012 Reader Rabbit Let's Learn Kind Reader Rabbit Let's Learn Kindergarten Reading 2012 Family Storybook Treasury Family Storybook Treasury 2011