Deep learning is a powerful family of AI algorithms which is revolutionizing image recognition, text generation, and protein folding. Immunology is a complex and high-impact field, becoming ever more relevant as climate change and global mega-travel are leading to increasing pandemics, fast viral mutations, and antibiotic resistance. Here, I introduce basic concepts of what deep learning is and how it is being applied to 3 crucial problems in immunology. We also cover the gaps, risks, and opportunities of these approaches. This talk is geared towards a general audience.