What is the author's style in The Celebrated Jumping Frog of Calavaras County by Mark Twain?

A tall tale features exaggerated, fabulous events. Characters in tall tales are often considered "larger than life," meaning they exhibit extraordinary qualities. Simon Wheeler's stories about Jim Smiley and his pets feature many such exaggerations, and thus fall into the tall tale category. For example, Wheeler describes Smiley as a man who will make a bet on anything, even something as mundane as which of two birds will fly off a fence first. Smiley's frog, Dan'l Webster, practically flies through the air when jumping and uses his legs like a cat to scratch himself. Finally, Andrew Jackson, Smiley's dog, will hold on to another dog—his preferred technique for fighting—for as long as a year to win a fight.