Books by Powell

Aquaculture Health Management: Design and Operation Approaches is an essential reference for the diverse aquaculture community. With the steadily increasing importance of healthy fish production and the expansion of the animal aquaculture industry to new geographic areas, new microbial and parasitic species with pathogenic potential continue to emerge. The book covers the broad spectrum of fish and shellfish health, the functional roles of pathogen emergence, and the impacts of nutrition and preventative medicine such as pre- and probiotics, as well as chemical treatments, relevant legislation and more. This reference takes a comprehensive approach to understanding overall fish health management, making it valuable to aquaculturists, practitioners in aquatic animal health, veterinarians and all those in industry, government or academia who are interested in aquaculture and fisheries and their sustainable futures.

The essence of spirituality is loving God, says Powell. The Bible, the Talmud, and the Qu'ran all direct their followers not merely to believe in God, to trust God, to obey God, and to serve God but to love God. Can we learn to love God?In this biblical spirituality for today, Powell's earnest plea is for Christians to revisit their faith not by blazing in religious enthusiasm but by harboring a steadier flame and deeper commitment. Living at the poetic heart of faith, he argues, entails seeing the coordinates of religious life in a new way. Powell espouses the old-fashioned idea of piety. Drawing on his wide knowledge of the Bible and Christian tradition, as well as insights from his own journey, he shows how simple religious practices move us beyond the old certitudes of a nave and youthful faith into the less certain but more bracing terrain of a second navet, a closer walk with Jesus.