Not helvetica but...

Classification: 
Font: 
Chalet Book (Bold)
Solved by: 
Fivos Vilanakis

Used on the latest TASCHEN mag (Spring 2014)
The "t" is awesome

Comments

It looks like [[http://www.findmyfont.com/index.php/fonts/font-preview?fset=House-Indust...|Chalet Book (Bold)]] by House Industries

Thank you!