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Why Does E=mc2?: (And Why Should We Care?) by Brian Cox

Brian Cox

US marketplace

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Deal History

2
Deals Tracked
2
Sale Months
$7.46
Avg Deal Price
2 weeks ago
Last on Sale
Lowest deal price seen: $7.44

Price History

Step chart of observed prices. Filled markers are recorded deal appearances; the line tracks the regular-price segments we've confirmed.

$6.44 $8.62 $10.79 $12.97 May 2026 May 2026 May 2026 Jun 2026 Jun 2026 Jun 2026: $7.48 May 2026: $7.44 Lowest $7.44
Sale price (snapshots) Regular price (snapshots) Recorded deal

Past Deals

May 2026 Sale
$7.44

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