What Is Earth Day?: A Good Answer to a Good Question

Who Was Maurice Sendak?

Lives of the Presidents: Fame, Shame (and What the Neighbors Thought)

Who Was John F. Kennedy?

What Was Hurricane Katrina?

I Am John F. Kennedy (I Am #9)

What Can a President Really Do?: A Good Answer to a Good Question

Who Pays Taxes?: A Good Answer to a Good Question

Boy Overboard: the award-winning middle grade companion novel to Girl Underground

Isaac Newton

The Boy At the Back of the Class

Who Was Louis Armstrong?

Albert Einstein

Bomb: The Race to Build--and Steal--the World's Most Dangerous Weapon (Newbery Honor Book & National Book Award Finalist)

What Is the Role of the White House Press Secretary?: A Good Answer to a Good Question

NBA Finals

What Is Immigration?: A Good Answer to a Good Question

Nelson Mandela: "No Easy Walk to Freedom"

What Were the Salem Witch Trials?

A Kids' Guide to America's Bill of Rights