Basic knowledge of mathematics: information theory requires a deep understanding of mathematics, especially probability theory, statistics, linear algebra, discrete mathematics and calculus. If your knowledge in these fields is not solid enough, you may need to take time to supplement these basic knowledge.
Reading textbooks and books: There are many excellent information theory textbooks and books, such as Fundamentals of Information Theory and Communication Information Theory. These books usually start from the basics and then gradually go deep into more complex topics.
Hands-on Practice: Theoretical study is necessary, but practical experience is equally important. You can try to solve some practical calculation problems or realize some concepts of information theory. This will help you better understand and apply the knowledge of information theory.
Take online courses: There are many online platforms offering information theory courses, such as Coursera, edX, KhanAcademy and so on. These courses usually include video lectures, reading materials, exercises and projects, which can help you learn information theory systematically.
Join the learning community: There are many learning communities about information theory on the Internet, such as StackOverflow and Reddit's r/ Information Theory section. In these communities, you can ask and answer questions, exchange ideas with other learners and solve problems encountered in the learning process.
Continuous learning: Information theory is an ever-developing field, and new research and technology are constantly emerging. Therefore, you need to keep learning and explore new knowledge.
Finally, learning information theory takes time and energy, but as long as you have enough enthusiasm and perseverance, you will succeed.