11.   The show was organized by James T.O.P., a fellow graffiti writer, as a tribute to his childhood friend.

12.   These arguments tend to bore younger graffiti writers, who have tried to stretch the form in recent years under increasingly harsh conditions.

13.   To confuse the police, graffiti writers adopted different tags, or names.

14.   Today, veteran graffiti writers like Quinones, Lady Pink and Blade are invited to demonstrate their skills at annual graffiti jams from Milan to Stockholm.

15.   While some former graffiti writers have become full-time artists, others have bypassed the art world for greener pastures.

16.   Although many graffiti writers are enthusiastic about commercialization, other changes sadden them.

17.   Germany attracts foreign graffiti writers in part because municipal governments and private companies have generously funded graffiti projects in hopes of drawing taggers into legal artwork.

18.   Some connections are being made on the Internet, apparently in well-disguised nooks and coded messages that graffiti writers are loath to discuss.