Memory is important in a learning process. The more students can memorize or retain information from a learning process, the greater possibility students can perform better in their learning. Therefore, this research aimed to explore visual communication in terms of its effectiveness and effects on memory enhancement with 19 Thai undergraduate students by using a communication skills online course with visual communication, an evaluation questionnaire of the selected course, an effectiveness questionnaire of visual communication, and a memory test on the selected course. Mean, standard deviation, content analysis and a t-test for dependent samples were used to analyze data collected from all research instruments. The research findings indicated that using visual communication produced positive results in enhancing student memory and thus generating greater student learning, which can be concluded that visual communication has high potential to be implemented in class as an effective tool for teaching courses to enhance student memory and thus create better learning performance.