He has written textbooks used by high school and college American government classes.

New York teachers have more freedom than those in other states to choose whether to use textbooks.

Many schools that favor the approach do not even use textbooks.

Such material had now been removed from the textbooks used in the state.

The book became a standard textbook used for college marketing classes around the country.

These evolved into written textbooks used by all Pace students.

He wrote a number of textbooks used by students world-wide.

In some districts, for example, neighboring schools use different textbooks.

Kølle wrote several of the textbooks used in his school.

Barker wrote textbooks used from third grade to high school.