I spent endless time playing with the Faces & Places generator at the National Gallery of Art web site. Pieces and parts from various menus can be combined to create your own folk art portrait (Faces) or landscape (Places). Be sure to animate your portrait when you’re finished for an extra giggle!

Mail art refers to any art that is designed to travel through the mail, including faux postage, envelope art and postcards.

Learn more about mail art in this recently updated article, What On Earth Is Mail Art?

Here’s an enormous set of artist trading cards made by Arizona artist Mary Watkin:

I like these books from London artist Cathy Cullis. Clean and simple, but so visually interesting!

Tip or tip-in means to attach an item such as a letter or an illustration into a bound book by applying a narrow line of adhesive on one of its edges. A tip-in in altered books lingo is a page or set of pages that is made outside a book, and glued or attached into it later.

For more on tip-ins in altered books, try A Crash Course in Tip-Ins.