Irma & Irma Slab
Irma is an elegant capital-only display typeface in 9 weights that is available in simple Sans & geometric Slab.
http://www.typotheque.com/fonts/irma

Advanced OpenType features
Irma provides different conditional letterforms allowing creation of typographic patterns. With the help of the sophisticated contextual substitution offered by OpenType technology, using these features is easier than ever before.
http://www.typotheque.com/fonts/irma_slab/about

article posted 24 August 2009 and last updated 17 November 2009.