Back when I was very young (and dinosaurs were becoming scarce) my dad introduced me to knots I had never seen and a wonderful book called The Ashley Book of Knots.
I learned a lot from that book and I made some things that nobody had ever seen before. But then I put it down for a long time. Another blogger, Stormdrane, inspired me to picked it back up again
Here's a picture of some coasters I made recently. They're in pink in honor of my step-mom's valient, if unsuccessful, eight year battle with cancer. In the Ashley book, it's knot #4355.