Walter Wick is an American artist and photographer best known for the elaborate images in two series of picture book activities for young children, I Spy and Can You See What I See?, both published by Scholastic.
My toddler is a visual learner and loves all of the I Spy books. She always has one or two checked out from the library. They have been great vocabulary builders for her because there are so many items in the pictures that I would not otherwise think to show her. I do not usually read the text to her. We enjoy talking about what she sees, or I will randomly choose things to tell her I spy, and she looks for them. Sometimes, we will look for the items listed in the text together.