I periodically do business trips to Singapore and I am always awed by their massive yet well thought-out urban landscaping. But one of my most favorite hangouts is not a garden nor a park but the old Borders bookstore in Wheelock Place, at the corner of Orchard and Scotts. And a great book I picked up on one trip is this: a reference book partial to Southeast Asia, by a Botany professor from the National University of Singapore. It's actually full of information that's not overbearingly scientific but largely practical and clearly understandable to hobbyists and enthusiasts.
In simple language, he writes easy steps to propagate and care for ferns. There's also a section about its science, its place in history, and simple identifying methods. The second half is devoted to a fairly comprehensive catalog of species, each with clear photographs in their natural habitat.