Solving analogies helps children learn to process information, make important connections, identify and construct relationships and improve comprehension and long-term memory. This series covers the five basic types of analogies: descriptive, comparative, categorical, serial and causal. Book 1 is the introductory level. It contains pre-analogy exercises, then progresses through the basic analogy types with four levels of difficulty. Novice exercises introduce and describe type of analogy, provide instruction and example, then practice exercises. Each of these has six words in a box, with one analogy shown. The student must use the other words to construct an equivalent analogy. Apprentice level exercises have a Word Bank from which students pick a word to complete an analogy. At the Masters level, students choose two words per analogy. Super Masters analogies have just one (or no) printed word(s) and a large Word Bank. Students create two analogies with corresponding relationships using words from the bank. Level 2 and 3 books are formatted similarly, with progressively more difficult vocabularies. Books 4 and 5 practice all five types of analogies also, but in the context of different subject areas (Geography, History/Government, Language Arts, Math). Answer keys also contain an explanation of analogies, with examples of each type of relationship, and lesson notes.