This table of contents from National Geographic caught my eye. It is relatively simple, but uses pictures and rhythm of hierarchy very well. It’s very easy for the eye to read and is easy to understand. I like how each picture is labeled with its page number for readers to easily see what they’re getting into. The bold, sans serif titles do a great job at catching the attention of the readers and goes with the serif, italic font of the body text very well. Lastly, the excellent use of white space around the text really solidifies this as a well designed table of contents.