Comics and cartoons are valued in twenty-first century popular culture and are increasingly used as 'Applied Comics' to help communicate key messages and information in society. However, there is less evidence of cartoons and comics being used to communicate with and engage library users in learning, information literacy (IL) and research support. This paper explores case studies of how several different projects have utilised comics as a medium to deliver key messages about library services to support teaching and research at Cambridge University Libraries. The paper examines the use of comics and cartoons in a library context framed in a theory of comics and visual learning. The reception and output of the comics and cartoons with different audiences at Cambridge University Libraries is explored and the paper proposes that further research could be done to examine the potential of comics in communication and IL.