Series Name: Red Rhino NonfictionSpies are skilled at getting secrets. Some people spy to help their country. Others do it to make money for themselves. Most spies stay hidden, but some become famous for their actions.Engage your most struggling readers in grades 4-7 with Red Rhino Nonfiction! This new series features high-interest topics in every content area. Visually appealing full-color photographs and illustrations, fun facts, and short chapters keep emerging readers focused. Written at a 1.5-1.9 readability level, these books include pre-reading comprehension questions and a 20-word glossary for comprehension support.