Free on Kindle
https://www.amazon.ca/Generative-Beginners-Playbook-Step-Step-ebook/dp/B0CWDQSC74/ref=sr_1_1
I had to pay $30 US for an I-94 when I was crossing the CBX for a five day Thanksgiving visit to family, contrary to what everybody says so expect to be surprised.
https://waggonerguide.com/canadians-face-stricter-u-s-border-crossings/