Quite a few good non-fics on sale at amazon.ca now. Quite possibly on sale at other amazon national sites and at Kobo, as these sale prices have been set by the publishers
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Longitude by Dava Sobel for $CDN 1.99
https://www.amazon.ca/Longitude-Geni.../dp/B003WUYE66
Goodreads page:
https://www.goodreads.com/book/show/4806.Longitude
I read this serveral years ago - a good discussion of the problems of early modern navigation, and the solution eventually adopted
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I Contain Multitudes: The Microbes Within Us and a Grander View of Life Ed Yong for $CDN 2.99
https://www.amazon.ca/Contain-Multit.../dp/B01824YMCM
Goodreads page:
https://www.goodreads.com/book/show/...ain-multitudes
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The Sixth Extinction by Elizabeth Kolbert for $CDN 3.99
https://www.amazon.ca/Sixth-Extincti.../dp/B00EGJE4G2
Goodreads page:
https://www.goodreads.com/book/show/...xth-extinction
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The Elements: A Visual Exploration of Every Known Atom in the Universe by Theodore Gray for $CDN 3.99
https://www.amazon.ca/Elements-Visua.../dp/B00NJ8468M
Goodreads page:
https://www.goodreads.com/book/show/6678064-elements
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Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe by Lisa Randall for $CDN 2.99
https://www.amazon.ca/Dark-Matter-Di.../dp/B00T3CU1ZK
Goodreads page:
https://www.goodreads.com/book/show/6678064-elements
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Molecules: The Elements and the Architecture of Everything by Theodore Gray for $CDN 3.99
https://www.amazon.ca/Molecules-Arch.../dp/B01BKSLH02
Goodreads page:
https://www.goodreads.com/book/show/20729580-molecules
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The Tale of the Dueling Neurosurgeons: The History of the Human Brain as Revealed by True Stories of Trauma, Madness, and Recovery by Sam Kean for $CDN 2.99
https://www.amazon.ca/Tale-Dueling-N.../dp/B00GG0GIXQ
Goodreads page:
https://www.goodreads.com/book/show/...-neurosurgeons
An excellent read, as with Kean's other books.
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The Homing Instinct: Meaning & Mystery in Animal Migration by Bernd Heinrich for $CDN 1.99
https://www.amazon.ca/Homing-Instinc.../dp/B00E78IC9W
Goodreads page:
https://www.goodreads.com/book/show/...oming-instinct
Every one of Bernd Heinrich's books that I have read so far has been very readable and informative.
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What the Robin Knows: How Birds Reveal the Secrets of the Natural World by Jon Young for $CDN 1.99
https://www.amazon.ca/What-Robin-Kno.../dp/B005MZN22G
Goodreads page:
https://www.goodreads.com/book/show/...he-robin-knows
I read this in paper format last year, so I was very happy to be able to get the ebook - an excellent introduction on finding and observing migratory birds