Alberto was born in Chicago, Illinois to parents of Mexican descent. He has three brothers and one sister. Upon receiving his BFA from The School of the Art Institute of Chicago (SAIC) he married Sonia Leticia Guillen. Together they have four children, half of which are girls. Aguilar also received his MFA from SAIC. Currently he is a tenured instructor of studio art at Harold Washington College, one of the City Colleges of Chicago and co-coordinator of Pedestrian Project an initiative dedicated to making art accessible to people from all walks of life. Aguilar's current practice merges his various roles in an attempt to capture fleeting moments, personal discoveries, and his interaction with others in tangible form. With his family, Aguilar lives near Midway airport--directly under the path of airplanes departing and arriving. Upon moving there he quickly learned not to try to talk over them as they pass by.