objective: to validate a flipchart with respect to self-efficacy in breastfeeding, regarding its content and appearance. methods: based on the translated version of the breastfeeding self-efficacy scale - short form, seven illustrations and their respective flipcharts were prepared. face validity (clarity / understanding) and content validity (relevance) were performed based on the evaluation of ten judges. results: the judges considered the methods were successful in relation to clarity / understanding. the content validity index was 0.92 as to the figures, and 0.97 as to the script, characterizing the flipchart as a valid strategy. conclusions: the flipchart can be used in various areas where nursing is practiced, including shared patient rooms.