The cafe is crowded, and she edges past a newspaper seller with damp, freshly printed sheets folded over his arm.

The sheets then further fold to form a beta prism in which each wall is composed of a complete set of five beta-strands.

There was an empty bed in the centre of the row, its clean white sheets folded back.

Four sheets folded become 16 pages of a book.

A single sheet of paper, folded once, no signature, type-written.

Two sheets, one of them folded to tie up with the other, to show me a possibility I'd never have thought of otherwise.

Every month they drove up into the hills, their sheet folded neatly in the trunk, their lust, by contrast, scarcely containable.

Every other greeting card contains a nasty surprise - a sheet of paper folded inside.

But once it arrived, a photocopied sheet folded smoothly in a crisp white envelope, I wanted it very much indeed.

Signatures of hardcover books are typically octavo (a single sheet folded three times), though they may also be folio, quarto, or 16mo (see Book size).