The document discusses thinking like a programmer and preparing to program. It begins by having the reader share their initial thoughts on programming and notes that learning to program can take years and involves learning new languages. It distinguishes between high-level programming languages like Swift, C#, Java, and C++ and scripting languages like Python, Ruby, and JavaScript. The document emphasizes that preparing to program involves regular practice of tutorials and training, remembering to write clean and concise code, making programming friends, and citing references as learning programming takes time and wrestling with concepts.