"Born on a Perilous Rock: Aberystwyth Past and Present" by W.J. Lewis is a 280-page paperback book published in 1980 by Gwasg Cambria. This local history book, written in English, explores the past and present of Aberystwyth, a town known for its perilous rock formations. With detailed insights and a captivating narrative, W.J. Lewis paints a vivid picture of the town's rich history and cultural significance, making it a valuable addition to any collection of historical works.