Classic graffiti lettering and experimental typographical forms lie at the heart of street culture and have long inspired designers in many different fields. But graffiti artists, who tend to paint the same letters of their tag again and again, rarely design complete alphabets. Claudia Walde has spent over two years collecting alphabets by 154 artists from 30 countries with a view to showing the many different styles and approaches to lettering within the graffiti and street art cultures. All of the artists have roots in graffiti.