Deep learning is a vast topic. To explore more about deep learning and other related algorithms check out the following very useful links:
- More about CNNs is on this awesome Stanford course: https://www.youtube.com/watch?v=NfnWJUyUJYU&list=PLkt2uSq6rBVctENoVBg1TpCC7OQi31AlC
- Dive into RNNs with this awesome blog post: http://www.wildml.com/2015/09/recurrent-neural-networks-tutorial-part-1-introduction-to-rnns/