Summer Nights is a free concert series run by Los Angeles public radio station KCRW across five neighbourhoods — Santa Monica, Westwood, Century City, Downtown, Chinatown — over ten weeks of summer.

A programme for a multi-venue series has two jobs that pull against each other. It has to work as a schedule, consulted in seconds by someone deciding where to go on a Saturday. And it has to be worth picking up in the first place, competing for attention on a table of free print nobody asked for.

The neighbourhoods run along the foot of the cover, so a stack of them becomes an index — you find yours from the edge without opening anything.

The duotone does the other half. Crowd photography pushed to blue and red reads as night, heat and a lot of other people, which is the actual promise. A schedule can tell you when. The cover has to tell you what it will feel like.