The #1 thing that I have learned over almost a decade of living with dementia is that thinking in pictures (images, diagrams, doodles, etc.) is much more effective than using words alone. Hedge your bet. Use pictures that associate with words rather than just words. After all, in many types of dementia, you lose your words at the end while the pictures may escape loss.
Try it. You will probably like it. Creating visualizations of important events, ideas, feelings, and other information can be FUN.
I’ve been using visual thinking methods for the past 10 years. They work (for me).