A few Harper-Collins titles on sale at amazon.ca :
by James Gleick for $CDN 1.99
Genius: The Life and Science of Richard Feynman
https://www.amazon.ca/Genius-Life-Sc.../dp/B004LRPQIO
Goodreads page:
https://www.goodreads.com/book/show/98685.Genius
by James Gleick for $CDN 1.99
Chaos: Making a New Science
https://www.amazon.ca/Chaos-Making-S.../dp/B003YL4KOO
Goodreads page:
https://www.goodreads.com/book/show/64582.Chaos
By Bernd Heinrich for $CDN 1.99
Mind of the Raven: Investigations and Adventures with Wolf-Birds
https://www.amazon.ca/Mind-Raven-Inv.../dp/B000V507ES
Goodreads page:
https://www.goodreads.com/book/show/...d_of_the_Raven