"Over The Barline: The A.R.C (Art of Reading and Communicating)" is a book for percussionists, drummers, and students, teaching them to count and play rhythms while reading music. It emphasizes the importance of reading music, comparing it to a foreign language for effective communication among percussionists. The benefits of reading music include organizing thoughts, tracking progress, receiving feedback, recalling learned material, and facilitating cross-language communication. The book explores note values from whole to sixteenth notes, providing a solid foundation for rhythm reading and communication in percussion. It aims to help readers save mental real estate by relying on written notation instead of memorization.