Categories provide a helpful way to group related posts together, and to quickly tell readers what a post is about. Categories also make it easier for people to find your content.
Advantages of Tags:
Tags provide a useful way to group related posts together and to quickly tell readers what a post is about. Tags also make it easier for people to find your content
Wordpress visual editor is one of the best option addon in wordpress. it is used to create posts and pages content and allows user to add multimedia elements like images, videos and also used to format the content of your web page.
example
making hyperlinks
Changing Text color (it writes css inline code dynamically)
text align
floting text
floating images
Hyperlinks options
many more...
here are few points i will cover
What is Visual Editor
difference b/w visual editor and code edtor
designers options
developer options
basic formting tags for content
adding links with visul editor
adding links with code editor
removing links
adding horizental lines
orderlist
un orderlist
blockquote
left indent
right indent
bold, italic and underline options
headings h1 to h6
paragraphic text
preformating text.
if you are not aware of HTML and CSS plase checkout my HTML and CSS tutorials in Telugu.