Learn through examples how to use the Perl map function to either run a block or an expression against each element of a list. There are provided a lot of commented examples to help you better understand how to use the map function in your scripts. The examples include: get a list with the squares of the first 10 positive integers; apply a function to a list; a map, grep and sort example; how to use map to read data from a csv file; how to make a hash out of a delimited string and much more.