London is one of the most mapped cities in the world. Unpredictable and complex, its gradual growth from a collection of villages to a metropolis has been charted endlessly. As part of London Design Festival 2015, dn&co celebrated these cartographic iterations with Co-ordinates, an exhibition of A1 prints mapping London.

Pentagram’s contribution to the exhibition was a print that hangs alongside submissions from 25 of London’s top design studios, including Bibliothèque, Hingson Studio, Poke and Spin.

Pentagram’s print is inspired by The A–Z, an enduring and seminal example of information design. The print is a blown up reworking of the street atlas’s distinctive blue and red logo. This small variation on a familiar image serves to remind us that the true extent of the city’s reach still remains a mystery to even the most seasoned Londoner.