I hadn’t heard the expression “library rat” since my undergraduate university days until I stumbled across this new mural by the Spanish street artist known as Xav. The work, which was commissioned by the Barcelona-based Contorno Urbano Foundation, celebrates those of us who happily hang-out in libraries. Part of the mural art project 12 + 1, the work is located in the town of L’Hospitalet de Llobreqat just outside of Barcelona.