A: Possibly, but downloading from there is illegal and risky. We strongly advise against it.
Instead, try the legal free options: Kindle Unlimited trial, library requests, or author giveaways. If you love the poems, buy a paperback – you’ll cherish it far more than a stolen scan.
A: Amazon offers a Kindle (AZW3) format, not PDF. However, you can convert Kindle books to PDF using Calibre (for personal use only, if you bought the book).