See also:

Machine Learning Books

3Blue1Brown / 3B1B videos on Bilibili & Youtube

Note: The following books are more introductory than professional, but usually enough for most engineers.

Linear Algebra

Sheldon Axler 《Linear Algebra Done Right / 线性代数应该这样学》(以线性变换为中心) [豆瓣 8.8,184 人],图......