Dutch architect and designer Gerrit Rietveld's Zig-Zag Chair is the final entry in our alphabetical advent calendar of iconic chairs. More about Dezeen's A-Zdvent calendar: Zig-Zag Chair by Gerrit Rietveld
The letter Y in our festive A-Zdvent calendar is represented by Hans J Wegner's CH24 chair, which is also known as the Y Chair because of its characteristically shaped back. More about Dezeen's A-Zdvent calendar: "Y Chair" by Hans J Wegner
The criss-crossing metal frame that gives this 1968 design the name X-Chair has helped it find its way into our A-Zdvent overview of classic chairs. More about Dezeen's A-Zdvent calendar: FK 82 X-Chair by Preben Fabricius and Jørgen Kastholm
With just two days until Christmas, today's offering from our A-Zdvent calendar is the cardboard Wiggle Chair by architect Frank Gehry. More about Dezeen's A-Zdvent calendar: Wiggle Chair by Frank Gehry
Made from almost 500 metres of rope, the Vermelha Chair by Brazilian designers Fernando and Humberto Campana is our A-Zdvent calendar's letter V. More about Dezeen's A-Zdvent calendar: Vermelha Chair by Campana brothers
The bulbous Up5 Chair by Italian designer Gaetano Pesce follows on from the 20 iconic seat designs we've already featured for our A-Zdvent calendar. More about Dezeen's A-Zdvent calendar: Up5 Chair by Gaetano Pesce
A staple in cafes around the world, Thonet's steam-bent No 14 chair is T in the alphabetical list of iconic seats we're publishing each day until Christmas. More about Dezeen's A-Zdvent calendar: Thonet No 14 Chair
As we head closer to Christmas with our A-Zdvent list of iconic seats, S is represented by Danish designer Arne Jacobsen's Swan Chair. More about Dezeen's A-Zdvent calendar: Swan Chair by Arne Jacobsen
Ron Arad said he "hardly designed anything" when creating his readymade Rover Chair, which is next up in our festive A-Zdvent calendar. More about Dezeen's A-Zdvent calendar: Rover Chair by Ron Arad
The next seat in our A-Zdvent calendar is Robert Venturi and Denise Scott Brown's Postmodern interpretation of an eighteenth-century Queen Anne chair. More about Dezeen's A-Zdvent calendar: Queen Anne Side Chair by Robert Venturi and Denise Scott Brown
The curvaceous Panton Chair by Danish designer Verner Panton continues our alphabetical list of iconic seating designs for the run up to Christmas. More about Dezeen's A-Zdvent calendar: Panton Chair by Verner Panton
Danish designer Henrik Thor-Larsen's retro-futuristic 1968 Ovalia Egg Chair is the 15th iconic seat design in our Christmas countdown this year. More about Dezeen's A-Zdvent calendar: Ovalia Egg Chair by Henrik Thor-Larsen
N is the next letter in our A-Zdvent calendar, represented by Emeco's lightweight aluminium Navy Chair designed for use on US submarines. More about Dezeen's A-Zdvent calendar: Navy Chair by Emeco
Transparent resin blocks peppered with flowers form the seat and arms of the Miss Blanche Chair by Shiro Kuramata – letter M in our alphabetical Christmas countdown. More about Dezeen's A-Zdvent calendar: Miss Blanche Chair by Shiro Kuramata
The next instalment in our A-Zdvent calendar is the welded aluminium and fibreglass Lockheed Lounge by Australian designer Marc Newson. More about Dezeen's A-Zdvent calendar: Lockheed Lounge by Marc Newson
Marcel Wanders' 1996 Knotted Chair, which marked the Dutch designer's international breakthrough, is the next iconic seat design in our A-Zdvent calendar for this year. More about Dezeen's A-Zdvent calendar: Knotted Chair by Marcel Wanders
Moving on to J, the next design in our festive alphabetical countdown is the Jam Chair created by Italian studio Archirivolto for Calligaris. More about Dezeen's A-Zdvent calendar: Jam Chair by Archirivolto
Philippe Starck's aluminium Icon Chair for American furniture brand Emeco is today's offering in our A-Zdvent calendar for 2014. More about Dezeen's A-Zdvent calendar: Icon Chair by Philippe Starck
Next up in our alphabetical look at the history of chair design – the lightweight Handkerchief office chair designed by husband and wife team Massimo and Lella Vignelli in 1983. More about Dezeen's A-Zdvent calendar: Handkerchief chair by Massimo and Lella Vignelli
The seventh entry in our A-Zdvent calendar is the Garden Egg chair by Hungarian designer Peter Ghyczy, which demonstrated new techniques for plastic production in the late 1960s. More about Dezeen's A-Zdvent calendar: Garden Egg chair by Peter Ghyczy
