A.k.a. zig-zag fold or accordion fold. In bookbinding a leporello binding has its pages concertina-folded, but also has front and back boards. [Wikipedia]
Contributed by Sandrine Nugue
Contributed by Production Type
Contributed by Omnitype
Contributed by Bureau Brut
Contributed by Marcello Jacopo Biffi
Contributed by TypeType
Contributed by Gareth Hague
Contributed by Gabriela Baka
Contributed by Simon Thiefes
Contributed by giulia boggio
Contributed by XYZ Type
Contributed by Kontour
Contributed by made in
Contributed by 205TF
Contributed by Frau im Mond
Contributed by HAL Typefaces
Contributed by Benoît Bodhuin
Contributed by CAST
Contributed by Or Type
Contributed by Herb Lubalin Study Center
Contributed by Fase Studio
Contributed by Ana Belen Agüero
Contributed by Alex Slobzheninov
Contributed by Jeremy Tankard
Contributed by Maria Doreuli
Contributed by Walter Hansen
Contributed by TPTQ Arabic
Contributed by Typotheque
Contributed by Elena Donets
Contributed by Luca Pitoni