Don’t review this book
Arguably, these terms prohibit the Kindle user from excerpting text from digitally-delivered works for the purposes of writing a review. A review quoting text would be a “display” of the content in a form other than on the Kindle device and would be for a non-personal and possibly commercial use. The use of the text would also be a distribution to a third party.
If other authors make their works available exclusively to Amazon for digital distribution, and Amazon is able to enforce its licensing agreement with its subscribers, reviews of those works might not appear–or reviews might be limited to description of the work, without quotations from it.
Moreover, these circumstances make it more difficult to browse a work before purchasing it. Sometimes in bookstores, I come across a book that is sealed in plastic. I always remove the plastic so I can see if I like the book before I purchase it. Perhaps that isn’t what the publisher intended, but nothing has ever happened to me as a result. Amazon takes things further. Kindle users do not get to see an entire work before purchasing it. And forget about showing your digital content to a friend (who might be thinking about buying her own copy): the license agreement appears to prohibit that too.