He has two books.

他有两本书。

youdao

Ron is best known for being the on-site XP coach on the first XP project in 1996, in addition he has two books: Extreme Programming Adventures in C# and Extreme Programming Installed.

Ron最为人们熟知的，是他曾在1996年的第一个XP项目中担任现场XP教练，另外他还写过两本书：《 Extreme Programming Adventures in C#》和《 极限编程实施》。

youdao

He has two hundred books.

他有二百本书。

youdao

He also has two books about investing that we'll talk about.

他也写过两本投资方面的著作,我们会谈到的

耶鲁公开课 - 金融市场课程节选

He has also published two books on the science of drugs.

BBC: Profile: Professor Les Iversen, chief drugs adviser

Since then he has written 11 books and launched two more Web sites: ChangeThis, which sought to spread ideas through PDF files, and Squidoo, a site that allows users to create pages--called "lenses"--about their interests.

FORBES: Magazine Article

David Jones, an economist who has written two books on Greenspan's Fed, told The Associated Press he thought it was obvious Greenspan was moving quickly to "mend fences" with Lott.

CNN: AllPolitics - News Briefs