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Open textbooks are licensed under Creative Commons Attribution 3.0 License.
Some college group listings provided by U.S. News and World Report and Forbes.
The Akademos AI℠ is a proprietary algorithm that weighs median prices and purchase patterns on new, used and digital books, taking into account marketplace availability. Z scores are calculated and books are scored from 1 to 5. The AI updates dynamically based on fluctuations in market prices.