To get a snapshot about what's been selling in Canada this year, PW asked BookNet Canada to compile the top sellers for the first nine months of 2009. Below are the results for the leading sellers in the hardcover and trade paperback segments through September 27, as ranked by BNC's tracking service, BNC SalesData.

Source: BookNet Canada, BNC SalesData
Hardcover Fiction Hardcover Nonfiction
1 The Lost Symbol.Dan Brown. Knopf Doubleday Publishing Group, $39.95 ISBN 978-0-385-50422-5 Outliers: The Story of Success.Malcolm Gladwell. Little, Brown & Company, $30.99 ISBN 978-0-316-01792-3
2 The Host.Stephenie Meyer. Little, Brown & Company, $28.99 ISBN 978-0-316-06804-8 Always Looking Up: The Adventures of an Incurable Optimist.Michael J. Fox. Hyperion Press, $33.99 ISBN 978-1-4013-0338-9
3 The Associate.John Grisham. Knopf Doubleday Publishing Group, $33 ISBN 978-0-385-51783-6 Act Like a Lady, Think Like a Man: What Men Really Think About Love, Relationships, Intimacy, and Commitment.Steve Harvey. HarperCollins Publishers, $31.50 ISBN 978-0-06-172897-6
4 Twenties Girl.Sophie Kinsella. Random House Publishing Group, $32 ISBN 978-0-385-34202-6 The Last Lecture.Randy Pausch. Hyperion Press, $23.50 ISBN 978-1-4013-2325-7
5 Assegai.Wilbur Smith. Pan Macmillan, $34.95 ISBN 978-0-230-52920-5 Food Revolution: Rediscover How to Cook Simple, Delicious, Affordable Meals.Jamie Oliver Hyperion Press, $45 ISBN 978-1-4013-2359-2
Trade Paper Fiction Trade Paper Nonfiction
1 The Book of Negroes.Lawrence Hill. HarperCollins (Canada), $24.95 ISBN 978-1-55468-156-3 Three Cups of Tea.Greg Mortenson. Penguin Group (USA), $16.50 ISBN 978-0-14-303825-2
2 The Shack: Where Tragedy Confronts Eternity.William Paul Young. Windblown Media, $15.99 ISBN 978-0964729230 Dreams from My Father: A Story of Race and Inheritance.Barack Obama. Crown Publishing Group, $16.95 ISBN 978-1-4000-8277-3
3 The Time Traveler's Wife.Audrey Niffenegger. Vintage (Canada), $22 ISBN 978-0-09-946446-2 The Audacity of Hope: Thoughts on Reclaiming the American Dream.Barack Obama. Crown Publishing Group, $19.95 ISBN 978-0-307-23770-5
4 My Sister's Keeper.Jodi Picoult. Simon and Schuster, $19.99 ISBN 978-0-7434-5453-7 The Power of Now: A Guide to Spiritual Enlightenment.Eckhart Tolle. New World Library, $14.95 ISBN 978-1-57731-480-6
5 The Guernsey Literary and Potato Peel Pie Society.Mary Ann Shaffer. Random House Publishing Group, $16.50 ISBN 978-0-385-34100-4 Blink: The Power of Thinking Without Thinking.Malcolm Gladwell Little, Brown & Company, $16.99 ISBN 978-0-316-01066-5