Every children's area in libraries has a basic and a general knowledge collection. Some of these also have a specialist collection on a specific subject such as the following:
"Comics" at the Ignasi Iglésias-Can Fabra Library, which offers classic and modern works and a manga section.
The sea at the Barceloneta - La Fraternitat Library
Stories for gender equality at the Francesca Bonnemaison Library
Circuses at the Nou Barris Library
Railway transport at the La Sagrera-La Marina Clotet Library
Emotional education for children at the Zona Nord Library
Mortadelo y Filemón at the Sant Martí de Provençals Library