If they have showed any interest in math and/or physics, you should consider getting them my MATH&PHYS book: https://www.amazon.com/dp/0992001005/noBSmathphys h

If they have showed any interest in math and/or physics, you should consider getting them my MATH&PHYS book: https://www.amazon.com/dp/0992001005/noBSmathphys https://www.amazon.com/dp/0992001005/noBSmathphys it's very popular for programmers. I also have a book on linear algebra, which would be good for people doing more machine learning or data sciency stuff: https://www.amazon.com/dp/0992001021/noBSLA https://www.amazon.com/dp/0992001021/noBSLA Both books are perfect for math haters, since they start out with a review of high school math.