I don’t know if Alicia Lochridge at First Grade Factory created these lovely visuals for any particular learners but her picture direction icons are perfect for students with autism, those learning English, and any child who is more visual than auditory. Go to her site to see the directions but stay for all of her other inspiring content. She has so many useful tutorials, downloads, reproducibles, and teacher-tested ideas.
Secondary teachers should keep in mind that this technique (with more sophisticated pictures perhaps) can also be used in your classrooms. Adding icons to your schedule or directions will always profit someone in the room.