Thomas Rainer: The Beauty of Biodiversity: Practical Strategies for More Lush, Abundant and Resilient Plantings. Thomas Rainer is a leading voice in ecological landscape design. He is a landscape architect, teacher, author and enthusiastic public speaker. While passionate about design and focusing on details, Thomas is a specialist in applying innovative planting concepts to create ecologically-functional designed landscapes. Come hear him share his insights on the beauty of biodiversity.