Through the book Ambisonics: Practical 3D Audio Theory for Recording, Studio Production, Sound Enhancement, and Virtual Reality, it gave me a comprehensive and deep understanding of the theoretical foundations and practical applications of Ambisonics technology. The book not only introduces the principles of Ambisonics technology in detail but also provides a large number of practical application cases and technical details, which greatly broadened my horizons. The book starts with the technical principles and explains the basic concepts and mathematical models of Ambisonics in depth. Ambisonics enables a realistic 3D audio experience by capturing and reproducing the complete information of the sound field. It reproduces the directionality and spatiality of sound more accurately than conventional stereo or surround sound systems. This made me realize that the advancement in audio technology is not only in sound quality but also in spatial audio reproduction. For an audio technology enthusiast and practitioner, the innovations that this technology brings are exciting. In terms of sound enhancement and virtual reality applications, the book details examples of Ambisonics applications in VR and AR environments. It can provide an immersive audio experience for virtual reality, allowing users to have a similar or even richer auditory experience in the virtual environment than in the real world. This not only improves the overall experience quality of virtual reality but also opens up new possibilities for future multimedia applications. Through this book, I have become more aware of the far-reaching impact of audio technology innovations on artistic creation and life, and it also inspires me to try and apply these advanced technologies more often in my future work, to create even more stunning and moving audio works. Ambisonics technology undoubtedly opens up a new door to the world of audio, and also provides more opportunities and challenges for us to explore the infinite possibilities of sound! Ambisonics technology has certainly opened new doors in the world of audio and provides more opportunities and challenges to explore the infinite possibilities of sound.