Thanks! I recommend People's Pops if you're going to splash out on a book. I wrote a little review* of it shortly after I purchased and still refer to it often. I think you could start a popsicle business with that book!
* Edited to add that if you go back to that old post, you can see an example of what happens if the molds are sitting in too warm water that doesn't go all the way up to the top of the molds. By the time the top part softened up enough to release, the bottom parts were all melty!