We have had this one before but I don’t remember what we came up with and I can’t find the old thread. Sorry

It smells like T-26, but can’t find anything that would have exactly the same features.

Try Berlin Sans

I know for a fact that it’s a custom-made font by the book designers, a student from Lausanne/Switzerland. Check the book’s colophon. It’s mentioned there. Or write to Phaidon, they’ll put you in touch.

It looks a lot like the type produced by the autolettering machines for draughtsmen. You could try and look for it on CAD-sites (that’s Computer Aided Design).

you should look to swiss foundries
http://www.lineto.com / http://www.optimo.ch
as they are turned to this kind of font design (typ1451, courier sans…)

check the james goggin works also, at http://www.practise.co.uk
he has design the helix new, which is also similar to the sample you’re looking for.

just for info, they used on their site the typ1451 in light version…
the designer may have redesign few characters for their book.

Hello,
The font was custom-designed for the Bouroullec project by Julien Gaillardot, a former student from the University of Art & Design Lausanne. Now he has his own graphic & type design studio in Avignon, France. The design is based on Bouroullec design shapes and exists in 2 weights. Julien will release a new typeface family on Optimo this spring.