Stephen Butler Leacock, FRSC was an English-born Canadian teacher, political scientist, writer, and humourist. In the early part of the 20th century he was the best-known humorist in the English-speaking world.
The Brand Guru - Morris Hite was a classic American advertising man, self-educated and self-made. He is not as well-known as some Madison Avenue ad executives, but he had a powerful impact on the industry.
Alan Gerard Fletcher was a British graphic designer. In his obituary, he was described by The Daily Telegraph as "the most highly regarded graphic designer of his generation, and probably one of the most prolific".