I picked up _The D Programming Language_ on a whim---having not written a line of the language---and found myself reading it straight through in couple of evenings. It's a really clear, insightful, and funny book about the language's design. Since then I've been doing all my hobby projects in D. The language is really fun to code in, mixing really powerful constructs with nice syntax/good ergonomics.
Nice to see this, a relatively complete intro/tutorial to the language for newcomers to explore.