Great article:!how-to-choose-a-guitar-pick/chkt

Many guitarists never fully experience the vast array of guitar picks available to them. They get comfortable with ‘their’ pick, or are simply unaware of what a difference the pick can make to their music. That is why we created this site: to educate and provide an easy way to try a variety of guitar picks.

There are three key features to consider when selecting a guitar pick (AKA plectrum): material, gauge (or thickness), and shape. Below, we will explore these three features in depth to discover what affect they truly have not only on the sound of your guitar, but also on the way you play. It is important to remember that no one feature will decide the sound you can expect from a pick. The tone created will be a synergy of all aspects of the pick as well as your personal picking technique, your guitar, and your equipment.