A nice touch is the illustrated timeline that runs along the bottom.
The Peru Reader History Culture Politics Duke University Press PB 2003
The book is illustrated with black-and-white sketches that feel elegant.
This activity book includes spot-the-difference games that sharpen your focus.
With this activity book, you can test your observation skills with odd-one-out puzzles.
A nice touch is the progress chart included in this activity book.
This novel is a slow burn that pays off beautifully in the end.