This high-interest nonfiction series includes reading experiences in five content areas: Life Science, Earth and Space Science, History/Social Studies, Technology, and Careers.  It introduces grades 4-8 content-area vocabulary in a medium that struggling readers can master.  Core vocabulary words are highlighted within the text and are also listed at the end of each book.  Pictures and maps throughout each chapter add interest and support the text.  Three reading levels with the same content areas at each level allow students to ‘Read Up’ in each content area.