Video tutorial on the intuition behind Neural Networks (Spanish): Tensorflow Playground Neural Networks
Golden standard for learning machine learning: Coursera Machine Learning course by Stanford University
Machine Learning for BCI: Link
Pytorch tutorial from official website: Pytorch Tutorial and Start Here
Neural network article: Interesting read
Learn Pytorch with examples: Then look at this
Conv Nets article: Another interesting read
Another Conv Nets article: An excellent read
If you have time: Conv Net theory
Video Tutorial on how to import and analyze EEG signals with MNE (Spanish)
Analyzing Neural Time Series Data - Mike X Cohen
Think DSP: Digital Signal Processing in Python - Allen B. Downey (Online Book)
The Scientist and Engineer's Guide to Digital Signal Processing (Online Book)
Introduction to Modern Brain-Computer Interface Design