Moving layers between Illustrator docs?

How do you move layers (let's say 10 layers) from one Illustrator document to another all at once, maintaining layer separation and names?

Illustrator is killing me. Every logical thing I've learned in Photoshop does not seem to apply to Illustrator at all (such as dragging layers from one document to another being the solution to the above problem I can't solve in Illustrator). Any recommended tutorials for beginners?