The United States has many diverse groups from which to draw on for humorous material.

The blog documents moments from his daily life and his reflections upon them, often as practice for his job of writing humorous material.

He was an outstanding humorist, and his writing style - whether he wrote humorous or serious material - was highly effective.

The Spirit also included humorous material, much of it based on experience of settlers near the southwestern frontier.

Both being creative minds with good sense of humor, they started creating humorous material.

The album featured more of Zappa's satirical and otherwise humorous or offensive material.

"When I worked in the book industry, I always tried to get my hands on humorous material," he said afterward.

In exchange, they cut bawdy, humorous material like that used by the Virginia Minstrels and other troupes.

I love working with humorous material.

While the speeches used to be mostly serious in nature, the trend has now changed such that speeches contain more humorous material and even some acting.