Indeed God’s Word is supreme and that means Christ, not a book.
You are without the Spirit when you say that - which means you are unable to understand the things of God but only the things of man. Jesus is The Word made flesh. And "The Book" holds His inspired Words. And no one can KNOW Him without His Word nor cares to know Him when they get flippant like you did.
Tell us what 'book' you have that is ALIVE and ACTIVE and accomplishes this...
"For the Word of God is ALIVE and ACTIVE. Sharper than any double-edged sword, IT penetrates even to dividing soul and spirit, joints and marrow; IT judges the thoughts and attitudes of the heart." Heb 4:12
If by the "book", you mean the sacred Scriptures that make up the Bible, then you are incorrect. These writings are God-breathed and "holy men of God spoke as they were moved along by the Holy Spirit" (2 Peter 1:21). Now you and others may choose to ignore them and their authority, but you do so at your own peril. I do NOT recommend it.