3.42.2 Greatest hits from previous weeks

Greatest hits from previous weeks:

3.42.2.1 How to create fixed width table columns with text raggedright/centered/raggedleft?

https://tex.stackexchange.com/questions/12703/how-to-create-fixed-width-table-columns-with-text-raggedright-centered-raggedlef

I would like to create a table with some columns' width specified, while the text in those columns should be centered both horizontally and vertically. I found out that 
\usepackage{array} 
...
 

- asked by Covi (189 votes), answered by lockstep (294 votes)

3.42.2.2 How to add indentation

https://tex.stackexchange.com/questions/45501/how-to-add-indentation

I am writing a thesis report using LaTeX and I need to add indentations because every new paragraph starts from the initial position on the left. 
How do I add indentations?
 

- asked by pavani (52 votes), answered by Frank Mittelbach (41 votes)