In Mette Units 4: Rings, Mette introduces twelve new models of modular rings. She also explores using non-typical paper types and sizes such as self-sticking notes, A-4 paper, 8 1/2 x 11 paper, and business cards. All assembly instructions are in color. And, as in all her books, Mette Pederson's instructions are clear, straight forward, and easy enough for even beginners to follow. This book was previously self-published.