Unlike the others here, I am not a prolific puzzle author… or a speed solver… or even an expert solver. However, like the other authors here, I love puzzles.
My current favourite puzzle types are slitherlink, masyu, and other loop type puzzles… and their variants. (Yes, I spelled favourite that way intentionally – I am Australian). In addition to posting up some puzzles for you to solve, I also intend to put up some tutorials aimed at pure beginners.
I planned to do a slitherlink tutorial, but there are a number of good ones out there already (particularly the Conceptis one), so felt there was no need to reinvent the wheel. Instead, you can practice those techniques on the below puzzle: (Easy possibly tending towards Medium)