There's many good recommendations for books here. But if you're a developer without much mathematics experience, I think you can harness your dev experience to

There's many good recommendations for books here. But if you're a developer without much mathematics experience, I think you can harness your dev experience to learn far more efficiently than a standard approach. Basically, go through the exercises in the book, but use numpy, Julia, MATLAB, or similar. Learn the "Matrix API" back to front. I've successfully taught a number of devs without a strong mathematics background with this method. The fast feedback loop this approach affords allows a good intuition to be built up very quickly.