Books Folded From A Single Sheet Of Paper

These books can perform two functions - both a book and a larger single image or poster. Cheap, easy and quick to make. Great for self promotional things.

The first method creates 8 pages, including front and back.
Steps:

Fold an A4 piece of paper in half vertically. Unfold.
Fold it in half horizontally, and fold it in half again the same way. Unfold.
Cut down the middle, so that it is essentially a 'loop' of paper.
Fold into a book.

The second method creates 14 pages, including front and back.

Steps:

Fold an A4 piece of paper into thirds, vertically. Unfold.
Fold it in half and in half again horizontally. Unfold.
Holding it horizontally, cut along the top crease from the left to 1 square in from the right.
Cut the bottom crease from the right to 1 square in from the left.
Fold into a book.