OK, we are still planning to have the Stacks project workshop this summer. I am slowly trying to work on having a new t-shirt or sweat shirt. I asked my youngest and middle son to make some artwork. Here is what they came up with for the front and back of the shirt.

I’ve ordered 3 shirts with these pictures on it for me and my sons; I will post a picture here when we get them. But a question I have is what text (if any) to put with these pictures. What I came up with was

• Front: Climbing mathematics…
• Back: You can keep going

This doesn’t really work very well. Instead what one of my sons came up with was

• On the stack
• No looking back

and I think it’s better. What do you think? Do you have a suggestion?