You've seen her outrageous doodles take over your favorite magazine covers, and now you can take home a piece of Hattie Stewart's explosively creative world. Packed inside a chunky hardcover case are 50 postcards, each bearing signs of Hattie's signature sass--from her iconic heart-shaped characters and giant eyeballs to puffy, 70s-inspired fonts and floral smiley faces.

Why text when you can leave a love note on your kitchen counter or pop a "thank you" in the mail? With these irresistible postcards and stickers at your disposal, it's never been easier to say hello to grandpa or wish your bestie happy birthday with a vibrant card that feels unique.