He was to become a self-taught expert in many fields.

He became a self-taught expert on American tribes by his own studies and his careful observation during long residences with different groups.

He was a self-taught expert on old methods of sea navigation.

While his detractors hid or joined the enemy ranks, the self-taught expert on every function of the ship had proved instrumental in its salvation.

"A self-taught expert in other species, but hardly trained in this sort of work."

And none of the self-taught experts zeroed in on the truth.

He is, in fact, a self-taught expert in Depression glass, and speaks confidently of glass's traits like "rainbow sheen."

A self-taught expert on medieval Persian poets, he can effortlessly recite their mystical love poetry.

Like most people pulled into the personal computer industry in the early years, Mr. Seymour was a self-taught expert.

He was a self-taught expert on the organ works of J.S. Bach.