Twitter is an amazing tool and very simple to use. However, simple doesn't always mean easy or intuitive. Overall, Twitter is one of the easier platforms to use but with anything there is always a learning curve.
I created these 3 infographics to help guide new users as well as serve as a refresher to current tweeters.
I hope folks find them useful...
All of these infographics, and any future updates and additions can be found here in both PDF and JPG formats.
Hope they help and happy tweeting!