Here is another collection of illustrator tutorials, also in this collection I choose a set of amazing and useful Illustrator tutorials, hope you enjoy.
Wrap a Ribbon Around a Sphere, Using 3D Revolve
How to Use the Perspective Grid to Create a Modern TV
Geometric Flower Effect
Chinese Bamboo
Polished Raised Type Treatment
Stylized Wave
Kitty Walkthrough
Three-dimensional Airplane
Shiny Bucket Icon
Cute Little Tiger
Cool Monkey Character
Mini Logo
Silky Ribbon Text Effect
Realistic Vector Bubbles
Monster Character Series
Super Happy Octopus Character
New Icon In Illustrator
Design Float Circle Icon (AI Tutorial)
Creating trees
Simple Storefront Icon
Amazing high resolution wallpapers #3
Teleconferencing Makes Communication Easier: 
+100 Free High Resolution Concrete Textures
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No doubt that Illustrator is a great program. I don’t use it but its a great program. I didn’t know you can use perspectives and 3D stuff like what i’ve seen here.
I’ve long time using Illustrator and it is great. it’s time to you to start using it
This is a really cool collection of tutorials! Thank you.