Russian Nozzle Piping Tip Stainless Steel by Chef Collection 1, O12

I absolutely love these! I was a little worried about ordering them because I have read other reviews online saying they are hard to use but am so glad I went ahead and ordered them anyway. They came in excellent shape and are good quality. I decorated a cake the other day using the #12 tip (a rose) and it turned out wonderfully! I think they are relatively easy to use although I do have to say the consistency of the frosting has to be really thick. I ended up using about 6 and 1/2 cups of powered sugar when my recipe only called for 4 but the frosting still tasted good. Can't wait to try out the other two I have! I recommend these to any one; experienced in cake decorating or not! Just be prepared to use a few more cups of powered sugar than what your frosting recipe recommends!

Trying to figure out what all of them are. Is there a chart to tell what tips do what designs other than trial and error.