>Can I ask you to consider buying your ebooks from a better vendor? Kobo is a good choice; they state whether or not a given book is DRM-free or not
Amazon also does state when a book is DRM-free, but you might have missed it as it's not clear.
Kindle Books that are DRM free will show "Simultaneous device usage : Unlimited" in the "Product details" section.
Books with DRM will either not list this if they have the default DRM device limit of 6, or will list a specific number if the book has a specific limit set by the publisher (usually expensive textbooks).
Amazon also does state when a book is DRM-free, but you might have missed it as it's not clear.
Kindle Books that are DRM free will show "Simultaneous device usage : Unlimited" in the "Product details" section.
Books with DRM will either not list this if they have the default DRM device limit of 6, or will list a specific number if the book has a specific limit set by the publisher (usually expensive textbooks).
Example of DRM-free book:
https://www.amazon.com/dp/B088P9Q6BB#detailBullets_feature_d...
Example of book with DRM (default limit of 6 devices):
https://www.amazon.com/dp/B00B7NPRY8#detailBullets_feature_d...
Example of book with DRM (publisher-set limit of 3 devices):
https://www.amazon.com/dp/B00UGE1DGA#detailBullets_feature_d...