An important life skill for looking your best is learning how to tie your own tie. It’s important that you practice before you need to look sharp and impress 
Below is a video showing how to tie a Windsor tie knot:
For diagrams and additional information, please visit the Windsor tie knot page on Tie-a-tie.net. On that site, you can also find instructions and videos on how to tie other styles of tie knots.
For those like myself who are mathematically inclined, you might enjoy the book The 85 Ways to Tie a Tie by Thomas Fink and Yong Mao. The book is based on the authors research where they enumerated all possible tie knots (having made certain basic assumptions about what constitutes a tie knot). Find out more on The 85 Ways to Tie a Tie Wikipedia page or Thomas Fink’s homepage.
[...] an earlier post, I shared a video showing how to tie a Windsor tie knot. Another skill that many people fail to learn until it’s absolutely needed is how to properly [...]