Image of U sign
Black & white drawing of two unsharpened No. 2 pencils.
Drawing of a turtle and hare racing.
Image of tightrope between bookstacks
Color graphic of a girl sitting with a book, thinking.
Black & white cartoon of a book character with a blank thinking bubble.
Image of T with turtle color version
Image of T with turtle
Image of T sign color version
Image of T sign
A book dropping onto a stack of books
Image of small e
Image of small book color version
Image of small book
Image of slate Z color version