This is a glossary of words from required books on the two 4C Reading Guides, words that students will not find in a dictionary at their reading level. It explains many historical terms, and has several historical maps created by Heron Books. It is simply and clearly written so students are able to easily absorb concepts of unfamiliar words. With the two 4C Reading Guides students have the opportunity to read several books in depth and learn a lot of new vocabulary.