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Product prices and availability are accurate as of Jul 12, 2026, 9:21 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
The lowest in-stock price right now is $28.49 at Walmart. We compare 2 retailers every day so you always see the cheapest current price.
Bloomsbury Solar Energy: The physics and engineering of is currently available at Amazon and Walmart. Use the Price Comparison table above to jump straight to the cheapest listing.
Yes — the current best price of $28.49 is $8.51 (23%) below the list price of $37.00.

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See today's price on Amazon
We link you to Amazon's live price — never a stale one.
See price at AmazonComparing 2 retailers for the best deal
Product prices and availability are accurate as of Jul 12, 2026, 9:21 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
We refresh prices regularly, but retailers move fast. If you found this item cheaper somewhere we compare, let us know and we'll take a look.