Most of their typography is derived from modifying existing typefaces. If you give a specific example I'm sure someone here could sort it out.

I am a new member - can hardly post the image... and their page is built on flash so I can't post the direct link... =)
But I'm talking about their Extra FATS. If go there and click on 09 you'll see what I mean exactly...
probably I've managed to insert a pic... probably not=))

It’s probably what they use throughout their site: ITC Serif Gothic, but with an extra thick outline stroke added.

Here you go …

Thanks a lot ... It works=)

I'll just go ahead and post this again:

Heavy Geometric Retro Deco ’80s Sans
Black Boton Bold
Frank
Deuce
Mostra Black
Blocks
Alpha Bloc Sculpture
FF Extra
Unovis
Neutrino
Toch
NB Block
Acton
Bebit (Cyrillic version of Milton Glaser's Baby Teeth)
Parkitecture
Wagner Silhouette
Rody and Lazar
Milford
Cooter
Douff

Free
Spokes
Disco Deck
Pacmania Normal
Fatti Patti (lame version of Baby Teeth)
Lovers Square
Pimp

Custom
Non-Format created a bunch of these for their design work.

Soft and Round
Deuce Round
Copal
NB Rund
Umma Gommma
Gusto
Fatty

I made my avatar probably in the same way they do their stuff.
It's basically a heavily modified sans serif. Although they also do serifs, but those looks kinda odd.

To answer the original question, the Non-Format fonts are probably not for sale.

Thanks once again... spend several hours to observe all the pages.

Take a look here, but I agree with Ricardo: I think that those are customized and exclusive ones... ;-)

How long does it take you to develop one of your custom typefaces?
JF: It depends on the typeface. Sometimes we work quite quickly and they’re exactly what we want for the job. Others need more work.
KE: Some won’t be the whole alphabet either, just the letters that you need. Then later you might go back to them.
JF: It might look great for the letters you need but might not for the rest of the alphabet. We had that with the Wire – we hoped and prayed that they wouldn’t write a headline with a Z in it! We didn’t have one.

Source: CR Blog

The new non-format book includes citations for all the fonts used.

The new non-format book includes citations for all the fonts used.

Nice to know that, jackson! I've seen the book in stores and can't wait to get a copy. :-)