The first book, Neil Flambé and the Marco Polo Murders, was voted the 2011 Silver Birch Award winner for Fiction.
He also won a 2012 Silver Birch as the illustrator for Don't Touch That Toad, written by Cathy Rondina and published by Kids Can Press.
Sylvester has written two books for Annick Press that reveal what happens behind the scenes at sporting events and big stage shows.
He is often heard filling in on CBC shows such as The Sunday Edition, Sounds Like Canada and The Current, and has also been featured on Richardson's Roundup, Ideas and The Inside Track.
As an illustrator, he is a contributor to the Literary Review of Canada, and his work has been auctioned off raising tens of thousands of dollars for charities.