NumPy’s official website is nump.org.
NumPy reference pdf has everything about NumPy. Currently, it is over 600 pages.
I listed a few tutorials below. Note that it is ordered beginner to advanced.
- NumPy basics tutorial by Rashan
- PyData2015 Python Data Analytics Workshop – NumPy, pandas, matplotlib, and SciPy by Vivian Zhang
- Introduction to Numerical Computing with NumPy SciPy 2017
- SciPy 2016
- SciPy 2015
- Numpy tutorial from CS231 course
In this 30 min. video, Jake Vanderplas is explaining what is NumPy and why it is being used for data science.
From Python to Numpy by Nicholas Rougier is an excellent book/website of NumPy.