This full-color series presents nonfiction topics about interesting places and subjects. Each title features color photographs and a glossary to help with vocabulary comprehension. Exercises and suggestions for project work are also included. The books are graded at 400-to 1,400-word vocabulary levels. Audio "CDs or "Cassettes are available for select titles.
It is a interesting subject. So not so boring to read. I didn't know "pop"music has different kind of music, like hiphop, rock and roll, heavy metal and so forth.