[realitygrill]

Echoing abecedarious, I do visualize the letters. In fact, I've read in some books about different types of language learners that there's a category/subset of visualizers that can only visualize the letters. (Not everyone is a visualizer, either.) It noted that these people are often very good at spelling and spelling bees.

Interestingly enough this seems to play out in various ways for me -- I can't remember people's names unless I remember how they're spelled, and often cannot recall the correct pronunciation if it's somewhat uncommon. And because my knowledge of Chinese characters is middling at best, I'm unable to remember Chinese names since I can't visualize and know the characters used!

EDIT: I should note I'm practically aphantasic, and that my visualizations are closer to being kinesthetic spatializations.