Found The Poisoned Pen on a list of the 44 best independent bookstores in the country. Buzzfeed was right! I was helped by Patrick who listened to books and authors I already like and made a fantastic recommendation for a new author to try. When I told him I found them on that list online, he asked me to email it to the owner (Barbara). She sent me an email later thanking me - a rarity in today's world, especially for something so trivial. In short, knowledgeable staff with great customer service has me wishing The Pen would open another location in Pittsburgh. Will definitely be back next year when I return to AZ!