As early-reader non-fiction goes, this one does a pretty decent job of providing a reasonable amount of information while keeping the readability easy.  Like other Pebble Plus non-fiction, this one offers 3-4 sentences per page, opposite full-page color illustrations.  This one accurately recognizes pirate treasure as stolen goods, not romanticizing the pirates, but acknowledging the lure it has held for many over the years.  The illustrations are partially historical artwork of the time, and partly color photos of historical recreations.