I experimented with a number of designs, trying to avoid something too obvious. For a long time I resisted the green colours you see used in the final design above because it implied trekking through the countryside, which wasn’t what the podcast was going to be about at all. But in the end sometimes the most straightforward designs are the best.
Later Nigel commissioned me again to produce the cover art for another podcast, Philosophy Speaks. I don’t believe this was ever used. My design was perhaps a little too cute anyway: Speech bubble shapes with quotation marks inside forming a loose yin-yang shape.
Later again I was asked to design the Thinking Books artwork, and I’m rather proud of the finished piece. I had actually tried quite a variety of designs for this which weren’t at all bad, but sadly they seem to have been lost. Anyway, the finished design was by far the simplest and best of the ideas.