100 Thematic Crossword Puzzles is a reproducible book of, as the title suggests, 100 crossword puzzles. Each puzzle is based on a theme. Each puzzle has 25 words to be found. The clues are fill-in-the blanks sentences. A list of the clues is given as well. Puzzles from 100 Thematic Crossword Puzzles can be used alone or with other thematically linked materials. There is a complete Answer Key.