Cleary, Brian P. Skin Like Milk, Hair of Silk: What are Similes and Metaphors? Illustrated by Brian Gable. Millbrook (Lerner), 2009. $15.95. Cleary and Gable continue their collaboration in this look at the difference between simile and metaphor. After you are finished, you will wonder why you were never able to remember the difference before! EL – ESSENTIAL. Cindy, Library-Teacher.