People grow numb to constant warnings of impending eco-catastrophes. That’s why Water, an undersized, art-packed volume that considers this dwindling natural resource from a number of nonscientific perspectives, feels so inviting–it offers myriad new ways to approach the coming clean-water crisis, as well as memoirs, essays, and photographs that reflect on our relationship to water. This book, the latest in John Knechtel’s superbly designed Alphabet City series, is a different kind of call to action: innovative, beautiful, and moving.