https://karpathy.ai/zero-to-hero.html If you want a deeper understanding of transform and how they fit in the whole picture of deep learning, this series is far and away the best resource I found. Karpathy goes into transformers by the sixth lecture, the previous lectures give a lot more context how deep learning works.
https://jalammar.github.io/illustrated-transformer/ This is a good illustration of the transformer and how the math works.
https://karpathy.ai/zero-to-hero.html If you want a deeper understanding of transform and how they fit in the whole picture of deep learning, this series is far and away the best resource I found. Karpathy goes into transformers by the sixth lecture, the previous lectures give a lot more context how deep learning works.