A few deals at Amazon.ca today:
The Disappearing Spoon by Sam Kean for $CDN 2.99
https://www.amazon.ca/Disappearing-S.../dp/B003JTHXZY
The Light of the World: A Memoir by Elizabeth Alexander for $CDN 1.99
https://www.amazon.ca/Light-World-Me.../dp/B00MEMMSQQ
Carrier Pilot by Norman Hanson for $CDN 2.99
https://www.amazon.ca/Carrier-Pilot-.../dp/B01MQGD6AF
The memoirs of a pilot flying Corsairs off HMS Illustrious in the Far East in 1944