Beginner Books
Real Estate Investing in Canada by Don Campbell (Canada)
https://www.amazon.ca/Real-Estate-Investing-Canada-Creating/dp/0470158891/
Rental Property Investing by Brandon Turner (USA)
https://www.amazon.ca/Book-Rental-Property-Investing-Passive/dp/B07141XGZD
Intermediate Books
Money People Deal by Stefan Aarnio
https://www.amazon.ca/Money-People-Deal-Fastest-Estate/dp/1482397137/
Complete Taxation Guide (Canada)
https://www.amazon.ca/Complete-Taxation-Canadian-Estate-Investing/dp/1545140022/
Advanced Books
Commercial Real Estate Investing in Canada
https://www.amazon.ca/Commercial-Real-Estate-Investing-Canada/dp/047083840X/