This one is a quick overview of my beginning to end process for creating an egghead illustration - from research to linguistic analysis to conceptual thinking to execution:
On improving your visual thinking skils by focusing on conceptual thinking, practicing lateral thinking, and throwing a bit of category theory into the mix :)
Related books:
Lateral Thinking by Edward de Bono
Women, Fire, and Dangerous Things by Lakoff
Ooh I loved this question! Lets me rave about some illustrators I'm enamoured with ;)
Part 1 of 2
The four I mention are JC Leyendecker, Paul Felix, Bill Perkins, and Tony Ruth @lunchbreath