Here is a list of some popular Illustrator
tutorials. Illustrator is a great vector art tool and is extremely
powerful for creating logos, illustrations, and other vector art.
Vector art is not resolution dependent so you can design a job
in vector form and increase the size 1000 times over and you will
not lose image clarity like you would in a raster based graphics
application. This comes in handy when you're designing larger
format jobs like banners and posters. Most Adobe
products are interchangeable so you can import/export from Illustrator
to Photoshop and vice versa.