6 stores
Harpercollins
Follow the Science
Compared at 6 stores·New and used
·Updated 18 hours ago
Lowest $2.11Highest $32.00
Compare buying options
Six live offers. The cheapest is used, the cheapest new one costs $4.38 more.Sold byDetailsSpecial savingsItem price
Product Description
Follow the Science
Set Price Drop
Get an alert as soon as it’s on sale.
Alert set
Your price
Lowest now$2.11
We’ll let you know when any store drops to your price or lower.
Video reviews
Reviews of this product on YouTube.Just For You
Stores we recommend, with today’s cash back rates.
Activate & ShopeBay
Up to 1.5% Cash Back
10% Off Select Items
Activate & ShopTemu
Up to 40% Cash Back
Up to 30% Off Select Items
Activate & ShopAlo Yoga
4% Cash Back
Up to 40% Off Select Items
Activate & ShopChewy
1% Cash Back
50% Off First Autoship
Activate & ShopWalmart
Up to 12% Cash Back
Up to 65% Off Select Items
Activate & ShopEtsy
3.7% Cash Back
Up to 75% Off Select Items
Activate & ShopAbeBooks
2.5% Cash Back
Free Shipping For Select Items
Activate & ShopThe Home Depot
Up to 8% Cash Back
Up to 40% Off Select Items
Activate & Shop2ndSwing
2.5% Cash Back
Activate & ShopeCampus.com
Up to 4% Cash Back
Activate & ShopSephora
5% Cash Back
Up to 50% Off Select Items
Activate & ShopBiggerBooks
3.5% Cash Back
7% Off