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Description
Math with Bad DrawingsBy: Ben Orlin A hilarious reeducation in mathematics full of joy, jokes, and stick figures that sheds light on the countless practical and wonderful ways that math structures and shapes our world. In Math With Bad Drawings, Ben Orlin reveals to us what math actually is; its myriad uses, its strange symbols, and the wild leaps of logic and faith that define the usually impenetrable work of the mathematician. Truth and knowledge come in multiple forms:
By: Ben OrlinA hilarious reeducation in mathematics-full of joy, jokes, and stick figures-that sheds light on the countless practical and wonderful ways that math structures and shapes our world.
In Math With Bad Drawings, Ben Orlin reveals to us what math actually is; its myriad uses, its strange symbols, and the wild leaps of logic and faith that define the usually impenetrable work of the mathematician.
Truth and knowledge come in multiple forms: colorful drawings, encouraging jokes, and the stories and insights of an empathetic teacher who believes that math should belong to everyone. Orlin shows us how to think like a mathematician by teaching us a brand-new game of tic-tac-toe, how to understand an economic crises by rolling a pair of dice, and the mathematical headache that ensues when attempting to build a spherical Death Star.
Every discussion in the book is illustrated with Orlin's trademark "bad drawings," which convey his message and insights with perfect pitch and clarity. With 24 chapters covering topics from the electoral college to human genetics to the reasons not to trust statistics, Math with Bad Drawings is a life-changing book for the math-estranged and math-enamored alike.
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★★★★★ 5
Wonderful product
Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)
I used this on a bald spot I had and it worked extremely well. Consistency is key though it needs to be used every day
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Reviewed in the United States on April 3, 2026
★★★★★ 5
It works and I love it!
Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)
I love this product.. been using it for a few months now. My hair is more manageable and my thinning crown looks and feels fuller. The smoky smell, am not bothered because it disappears after a few minutes. I use it twice a week, massage very little amount on scalp and hair, then the next day wash it off with shampoo. I used to need to dye my gray every 3 to 4 months when some appear. Now, it's been 4 months since my last visit to the salon. I noticed my hair has darken a bit. I can delay my salon visit for another month unless I need a haircut!! Yehey!
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Reviewed in the United States on September 19, 2025
★★★★★ 3
Good moisturizer. Rich scent.
Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)
Raw Batana Oil provides goods moisturizing to hair and scalp and best applied with a little heat or steam. Pomade goes on easily once heated and does not feel heavy, greasy, or oily. Its rich fragrance eases on the nose after a short while. Difficult to say whether it is actually useful or whether it encourages hair growth. Leaves hair soft and easy to style.
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Batana Oil
I bought a set of batana oil set. This batana oil hair growth kit is a practical option for nourishing the scalp and improving hair condition. It includes both a liquid oil with a dropper for easy application and a thicker raw oil for deeper conditioning. The texture is rich yet manageable, helping to hydrate dry hair, reduce frizz, and add softness and shine with regular use. The natural, slightly earthy scent may not suit everyone but fades over time. While noticeable hair growth requires consistent use, the kit performs well for moisture, scalp care, and overall hair strength.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Love it
The real deal. As soon as I opened it, smells like coffee. Not greasy at all. Nice size and the bottle with oil is larger than I thought. Had to get another. Will sell out. Love the way it fills in my hair.
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Reviewed in the United States on May 30, 2026