Nathaniel Tarn's newest collection of poems, Ins and Outs of the Forest Rivers, dives deep into the spiritual and physical sufferings of our global age. After a moving overture, the book unfolds in five sections: "Of the Perfected Angels," with its lucid meditation on Issenheim altarpiece by Matthias Grünewald; "Dying Trees," written out of the horrible loss of hundreds of thousands of trees throughout the American West in recent years; "War Stills," an engagement with the ongoing atrocities in Iraq; "Movement / North of the Java Sea," taking flight from Maui to Bali to Papua New Guinea; and the final section "Sarawak," snaking its way through the river and indigenous anguish of Borneo, where Tarn as poet-anthropologist surveyed the loss of forest lands and its effects on tribal peoples.

The American poet Nathaniel Tarn was born in Paris in 1928 and emigrated to the US in 1970, where he has lived ever since, mostly in the New Mexican desert. A leading anthropologist for many years and a pioneering translator of Pablo Neruda and Victor Segalen, Tarn, "one of the most outstanding poets of his generation" (Kenneth Rexroth), has published more than thirty books of poetry, essays, and translations-including most recently, The Beautiful Contradictions and Ins and Outs of the Forest Rivers, both available from New Directions.