In order to purchase images and get access to lightboxes and invitation-only galleries, you must have a free account with PhotoShelter. PhotoShelter is a service which provides image delivery and sales capabilities for this website.
Image (licenses) can be purchased for Personal, Editorial and Commercial use. Just find an image(s) that you like, click that greenBUY button up there at the top of the image area , and when you are done, checkout and pay with your credit card thru the PayPal portal.
Of course, you can always contact me for special needs, such as leased corporate wall art, non-profit loaner art, or assignment work.