Once again, our thanks to all of the people who have assisted us over the years in putting the various editions of this book together. In particular, we would like to thank Josh Watt, Joe Warbanski and Tom Paci for their help in assembling up-to-date inter-provincial data for the 6th edition.
This latest edition would not have moved onto this professional open textbook virtual space without the guidance of Heather Ross and Wendy James from the Gwenna Moss Centre for Teaching and Learning, and technical support from Julie Maier from the Distance Education Unit at the University of Saskatchewan.
We would like to acknowledge the copy-editing expertise from Idowu Mogaji who moved the latest edition into the PressBooks platform.
We acknowledge the photo used for the book cover that was created by Pawel Czerwinski and found on the open access site Upsplash.
Finally, we wish to acknowledge financial publication support from the Open Textbook and Ancilliary Resources Fund offered through the Gwenna Moss Centre for Teaching and Learning at the University of Saskatchewan.