Buy your first photography book. Get the simplest, thinnest book you can find, so that you can get up to speed with all the basics and finish the book in one sitting, without getting too bored, confused or frustrated.
Then go and practice shooting. Keep shooting. Bring your camera with you everywhere and use it!
After a while, if you decide to get really serious, get your second photography book. This one will be more advanced, and you will refer to it occasionally as reference. It's like a "photography bible" of sorts.
That's my personal approach to learning anything new.