Jim Nations draws on field work in the region over the last 25 years in this personable, detailed overview of the people, history and wildlife of the lowland tropical forest of southern Mexico, Guatemala and Belize. With chapters on the Selva Lacandona (Chiapas), Calakmul (Chetumal), the Maya Biosphere reserve in Guatemala (including Tikal) and protected sites in Belize.  (MYA49, $22.95)