19. [Grokking Deep Learning](https://www.manning.com/books/grokking-deep-learning)
20. [Deep Learning for Search](https://www.manning.com/books/deep-learning-for-search)
21. [Keras Tutorial: Content Based Image Retrieval Using a Convolutional Denoising Autoencoder](https://blog.sicara.com/keras-tutorial-content-based-image-retrieval-convolutional-denoising-autoencoder-dc91450cc511)
+22. [Pytorch Tutorial by Yunjey Choi](https://github.com/yunjey/pytorch-tutorial)