ID:1621020
 
Keywords: blue, book
(See the best response by LordAndrew.)
Is it still relevant? What are some more recent tutorials right now? I already understand the basics.
Best response
I'd say it's still relevant, at least if you want to learn the syntax of the language (and get a feel for all of the various built-in functions). As for other tutorials, there's the resource repository which has a catalogue of them.