The Illustration field has changed a lot in my time, and can be expected to keep changing. Here are five suggestions that I’ve found consistently reliable. Whether you work traditionally or digitally, in house or in a basement, these tips will probably help you keep working as an illustrator…
1. Draw a lot.
2. Be nice. Be kind. Be someone you yourself would want to be around.
3. Make helpful routines for yourself and respect them.
4. Never surprise the art director.
5. Start your 10 K hours now.
If you’re looking for something a little more academic, visit the excellent blog of James Gurney, gurneyjourney.blogspot.com, and take a look around. His 2012 post on the best How-To art books is still a really good place to start the endless process of leveling up your work.