Amazon announced today that it's making the machine learning courses it uses to train its engineers available to everybody for free. The coursework is tailored to four major groups -- developers, data scientists, data platform engineers and business professionals -- and it offers both foundational level lessons as well as more advanced instruction.

"Each course starts with the fundamentals, and builds on those through real-world examples and labs, allowing developers to explore machine learning through some fun problems we have had to solve at Amazon," Amazon said in the announcement. "Coursework helps consolidate best practices, and demonstrates how to get started on a range of AWS machine learning services, including Amazon SageMaker, AWS DeepLens, Amazon Rekognition, Amazon Lex, Amazon Polly and Amazon Comprehend."