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Description
The Art of Doing Science and EngineeringA groundbreaking treatise by one of the great mathematicians of our age, who outlines a style of thinking by which great ideas are conceived. What inspires and spurs on a great idea? Can we train ourselves to think in a way that will enable world changing understandings and insights to emerge? Richard Hamming said we can. He first inspired a generation of engineers, scientists, and researchers in 1986 with 'You and Your Research', an electrifying

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4.0 ★★★★★
Based on 1356 reviews
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Product Reviews
★★★★★ 4
Great product!
I use this once a week. I apply with my fingertips. (It is liquid, so a little goes a long way) After you wash your face for the night- wait a few minutes then apply this. If you don’t wait it might sting for a few minutes- so wait.. Apply your moisturizer after. My face was so soft the next day after one use. It is now a regular in my skin care routine. I do not use another active like retinol or tea tree serum the day after.. just moisturizer. Would recommend and will buy again.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Good product
This seems to be working really well. I used to use a different brand of BHA and I like this one better.
I do wish they had an eye dropper version, but it’s fine.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Works Perfectly
This has improved my complexion greatly. Wrinkles and fine lines are smaller. My pores have shrunken as well
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Good Skincare.
It is Really Good Skin Care. I love how Gentle and good this is on the Skin. I would Highly recommend it.
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Reviewed in the United States on March 17, 2026
★★★★★ 3
Switching back to Paula’s choice
While I like the all natural ingredients, I switched back to Paula’s Choice instead. In my opinion, I think it works better.
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Reviewed in the United States on April 14, 2025




