Hello!

I'm desperatly trying to identify this font...
the disoplay font that can be seen here http://books.alistapart.com/product/html5-for-web-designers (and take a closer look at the attached file)

I've looked at Heroic Condensed, but it's not quite the same, it's more condensed!
I can't fins this font and I like the sweetness of the "S" curve and the R geometry.

Anoyone's got an idea? Thank you very much in advance :)

baaz