The book "Data Link Layer for Mobile Vehicular Ad Hoc Underwater Networks" offers a comprehensive analysis of the challenges and solutions in the field of underwater communication, particularly in the context of autonomous vehicles. It highlights the difficulties posed by long propagation delays and high bit error rates, and presents innovative approaches to improve data transmission in these complex environments. The author, Daladier Jabba Molinares, develops specific protocols for the data link layer tailored to the unique requirements of underwater networks. In particular, the 2MAC protocol is introduced, which optimizes network throughput by leveraging the multi-channel capabilities of OFDM at the physical layer. Additionally, the SW-MER protocol is described, which enhances the efficiency of data transmission by combining proven strategies. This specialized book is aimed at computer science professionals interested in developing new protocols to improve underwater communication.