He is the author of several books, including 2011's Life in 2050.

He is also the author of several books on legal history.

My mother was now a professor, the author of several books.

He also was the author of several books about writing and reading.

He was also the author of several other books, including Vote!

He is the author of several books on computer security and information technology.

He is also the author of several books on the subject.

He is also an author of books on the same subject.

He was the author of several books on skin and hair care.

He also is the author of two books on human movement.