Tonga Islands: William Mariner's Account by Dr John Martin, was published in 1817, and is the best book available on pre-Christian Tonga.Paul Theroux's The Happy Isles of Oceania: Paddling the Pacific is a downbeat account of the perpetually sneering writer's canoe journey around the islands.Island Kingdom: Tonga Ancient and Modern by IC Campbell is a comprehensive and up to date history of the archipelago.Earl R Hinz's Landfalls of Paradise: The Guide to the Pacific Islands gives a complete run down on anchorages, navigation, marinas, fees and officialdom throughout the South and central Pacific, and is invaluable for yachties.Sounds of Change in Tonga: Dance, Music and Cultural Dynamics in a Polynesian Kingdom by Ad Linkels, is a study of the changes taking place in Tonga's traditional music and dance.Field Guide to Landbirds of Tonga by Claudia Matavalea of the Tongan Wildlife Centre Bird Park on Tongatapu, is available at the park and the Friendly Islands bookshop in Nuku'alofa.