The document provides a 12-step roadmap for becoming a data engineer, including recommended courses, books, and hands-on projects for skills like computer science fundamentals, programming with Python and SQL, Linux, big data systems, data warehousing, batch and stream processing, cloud computing, data orchestration with Airflow, and data engineering management. It also shares additional learning resources like blogs, podcasts, conferences, YouTube channels, and people to follow on social media to continue expanding data engineering knowledge.