I was in China then, but still we knew his work.
"A lot of people know his work and that results in us getting business."
I once talked with someone who knows your work well about how you get such special access to people's lives.
Some in the audience were there because they knew him or his work.
Nor were they in the style of anyone whose work I knew.
You don't know what goes on off the course with the other guys; their mental work and physical training.
He is a steady young man, and knows his work.
If you don't know his work, this would make an excellent place to start.
You can't expect people to read 50 or 150 pages if they don't know your work.
The two men from the alien control section knew their work well.