If you’re in Berlin during May and are in the market for a limited edition, minimalist tattoo, stop by to see our friends at Arratia Beer, a gallery in Berlin with Elizabeth Beer of Project No. 8 and Euridice Arratia. Their latest exhibition hosts Olaf Nicolai, who has created a codified alphabet and suggests that visitors select the initials of someone they love or hate — the designs embody “not just information, but also communication. You have to ask the person if you want to understand it,” Nicolai says. Tattoos will be inked off-site through May 28.