For prints or downloads, click "Buy" at the top right. Most sizes are between $1 and $5. For prints, scroll down a little bit and check the filename below the larger, right-hand image. If it says "sq" after the image number, pick a square print size (5x5 or 8x8). If it says "4x5", pick 4x5 or 8x10 as your print size. If it doesn't say, it's 2x3 (4x6) but for many of those, 5x7 or 8x10 will also work. (You can crop them during the order process.) Email firstname.lastname@example.org if you'd like help or advice, or for a reduced price on 10 or more.