The use of visualization techniques in learning is not new. They have been used in maps and drawings for thousands of years. This chapter analyzes how more novel visualization techniques can be used to enhance various activities during the learning process: finding and understanding educational resources, collaboration with learners and teachers, (self-) reflecting about learners´ progress, and designing learning experiences. We illustrate our analysis with example tools and visualizations. Results of our analysis indicate that visualization techniques are beginning to be more widely used for learning but further research is needed to assess the added value of these visual approaches in terms of effectiveness, efficiency or other criteria that pertain to learning.