If you see advertising material that is folded and not sewn - here we mean the binding with a staple or gluing - we are talking about the leaflet / regardless of the size /. дипляна/независимо от размера/.
Common types of leaflets:

Examples of different types of folds in leaflets
The most commonly used leaflet is in A4 format / standard sheet of printer paper / with two folds / so-called. creases /.

Leaflet printing
A4 format, 2 folds, double-sided full color printing
client: Belprego Travel
Leaflet printing
A4 folded to A5 format, 2 folds, one crease
double-sided full color printing

When printing instructions, folding often takes the form of an accordion, but many variations are applicable.
Folding / creasing / is a finishing operation and as such affects the term and price.
Leaflets are usually used for information purposes.
You will often meet them around the receptions and at the cash registers.
Introduce customers to the activities of your department, guide them or explain to them how the equipment they have purchased from you works.
Specification:
Format: : from A6 to A3, the most common are A4 with two folds, A3 folded in half to A4 and A4 folded to A5
Paper: 115,130 g / sq. m. chrome gloss, with a larger weight it is recommended to laminate (additional glazed or matte finish), in order to avoid cracking of the paper at the folds and to achieve a luxurious look of the product
Printing: double-sided full color printing (4 + 4, CMYK)
Quantity:
from 1 to 1 000 A4 - digital printing
Over 1,000 A4 offset printing - the unit price of the product is lower
Luxury leaflets - holders for promo cards:

Leaflet printing, finishing operations: double-sided laminate matt and selective gloss varnish images

Leaflet printing
A4 format with 1 fold
double-sided full color printing

Leaflets design and printing
Format: A4 with 2 creases
paper: 115 g/sqm chore-gloss
Leaflets as price lists:

Leaflets design and printing - price list
client: Make-Up Zone