The Critical Thinking Co. is a publisher specializing in workbooks and software that build logic, problem-solving, and higher-order thinking skills from preschool through high school. Their materials cover topics ranging from visual puzzles and math reasoning to language arts, often with activities that go beyond standard multiple-choice questions. Founded by an educator committed to teaching kids how to think, not what to think, the company has won numerous awards in the homeschool and education space. Parents like that many books are non-consumable or lightly consumable, making them reusable across siblings, and that pages feel like brain teasers rather than drills. These resources are ideal as supplements for curious learners or as core material in logic-heavy courses. Some books can feel challenging or puzzle-like for kids who prefer straightforward tasks, so placement matters. To maximize value, start a bit below your child’s level to build confidence, then gradually move up in difficulty.