like a booklet but not a booklet

[zoran]

Im looking to know how this type of booklet is called.
Its supposed to be a long paper strip that is divided with many folds.

 

[Puonti]

Fold-out booklet / brochure, or accordion fold booklet / brochure.

If there were only 3 panels you might call it a Z-fold.

If all panels were folding inwards it would be called a barrel fold.