The American artist Dan Graham has always been a source of fascination to Jeppe Hein, who is more than thirty years his junior. But Hein became a real fan in 1998 when, still an art student, he curated an exhibition in Copenhagen that included Graham’s unrealized 1997 design for the Liza Bruce boutique in London. The encounter with Graham and his seven glass sheets, which form a clouded two-way-mirror installation, remained a powerful influence. Now the artists have collaborated on a joint exhibition. Over the course of two years, they exchanged thoughts, designs, and sketches, sending faxes