Deep learning is an artificial intelligence technique that imitates the human brain in processing data to recognize patterns and make decisions. It has transformed industries like web search and advertising and is enabling new products and businesses. Deep learning uses neural networks and applications like medicine, self-driving cars, agriculture, and more. It is considered a highly sought after skill and part of the rapid rise of artificial intelligence. This document provides an overview of deep learning and what topics will be covered, including neural networks, deep neural networks, improving models, structuring machine learning projects, convolutional neural networks, and natural language processing.