I am not beginner in coding.  I know how to read code and have done some java and cobol.   I want to learn this visual stuff.  What is a good place to start.  They mentioned some videos that show how to creat stuff for the beginners.  Anyone know any website or any good book that will get me started. Thanks in advance.

One more question. In the articles on Coding4fun, is there a way to know what expert level is needed to read the article?