Two great books about fort building, it must be a thing!

I found this cool picture book that invites kids to build forts and also reviews the seasons of the year.
By Megan Wagner Lloyd ...

And then this great one for adults popped up with the second part of the title saying that "growing up is optional". Love it!
By Grackle & Pigeon...

We found that our tent at the library got a ton of use. Now we have switched to a rocket for the outer space theme this summer and kids love it, too. If you cannot find me at my desk, I might be hiding out in there! Haha