Short answers, pulled from the story.
Timothy Zahn is best known for his Star Wars novels, chiefly the Thrawn trilogy. He has written thirteen novels featuring Grand Admiral Thrawn in total, including the Hand of Thrawn duology, Outbound Flight, Choices of One, Thrawn, Thrawn: Alliances, Thrawn: Treason, and the Thrawn Ascendancy trilogy.
Yes. Zahn's novella Cascade Point won the 1984 Hugo Award. His novels have also won five Dragon Awards.
The first book in the Thrawn trilogy was Heir to the Empire, published in 1991. All three novels in the trilogy made the New York Times Best Seller list.
West End Games sent Zahn boxes of detailed sourcebooks from Star Wars: The Roleplaying Game when he began work on his Star Wars trilogy. Lucasfilm had been using those same supplements as internal franchise references.
Zahn served as a creative consultant on the Disney+ miniseries Ahsoka. Director Dave Filoni confirmed this at Star Wars Celebration Europe in 2023, stating that only Zahn, as Thrawn's creator, could advise the team on the right way to adapt the character.
Zahn wrote the Blackcollar trilogy, the Cobra series comprising nine novels, the Dragonback young adult series, and the Conquerors trilogy. In 2014 he collaborated with David Weber on the Manticore Ascendant series, set within the Honorverse.