This paper explored casualisation of labour in academic libraries and its effect on employees. Although casualization of labour is mainly for the unskilled and for those with low educational qualification, it has become a growing concern as persons with skilled and specialized training are being subject to casualization. Academic libraries in Nigeria do not spare the scourge of casual employment. Through the analysis of literature, the paper took a look on casualization of labour in academic libraries, drawing on the experience of Babcock University library. It employed data gathered from questionnaire administered on the 21 casual employees in Babcock University library. Findings show that casual labour is fraught with negative effects. The study also found that Babcock University library is largely casualised. Casual workers at Babcock University library are however satisfied with their work; they enjoy health benefits and have the opportunity for career progression.