The most common types of single-sheet brochures are the bi-fold (a single sheet printed on both sides and folded into halves) and the tri-fold (the same, but folded into thirds).
A bi-fold brochure results in four panels (two panels on each side), while a tri-fold results in six panels (three panels on each side).
Other folder arrangements are possible: the accordion or “Z-fold” method, the “C-fold” method, etc.

Larger sheets, such as those with detailed maps or expansive photo spreads, are folded into four, five, or six panels. A pamphlet is often a one-sheet brochure printed on both sides without a fold. Businesses may turn out small quantities of folders on a computer printer or on a digital printer, but offset printing turns out higher quantities for less cost a unit. Digital print can be produce the day of command, you can start printing by 1 piece and you can personalize each printed matter. Digital printing gives a high flexibility in good quality in a minimum of time.