An illustration of a child. This child looks like he's thinking hard about something. The image was taken from the US government's EPA "sunwise" program.
This is a completely free image Thinking Child that you can download, post, and use for any purpose.
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.