An oldie but good one. If Illustrator's blending is tossing you through a loop check this tutorial out and get a baseline on the functionality and where to go!
In Adobe Illustrator, the Blend Tool can help you create impressive color blends. But there is more to it than you might know. This comprehensive guide can help you unlock your creative potential and teaches the features, shortcuts, and in depth methods that the Blend Tool has to offer.