Pocket Divesite is a set of English-language dive briefing map guidebooks covering the best dive sites in Thailand’s Andaman Sea. First published in 2004, the books were created by five divers who originally trained as designers but later became dive masters and instructors based in Phuket in the early 2000s. Combining thousands of dives’ worth of real-world experience with their background in design and architecture, the authors crafted easy-to-understand underwater maps and carefully written briefings that deliver the most accurate and complete site information possible. With over 11,000 copies sold and with briefing maps from the books widely re-used aboard dive vessels across Thailand, Pocket Divesite has become a proven and trusted resource in the diving community. These books aren’t photo-heavy guidebooks made for browsing — they’re professional-level briefing tools used by dive pros to guide their guests safely and confidently. Since 2004, the Pocket Divesite series has helped countless divers better understand underwater topography, currents, local marine life, and how to plan enjoyable, responsible dives in Thailand’s most iconic dive sites.