Sibby -
I found
this to be a really awesome primer on meditation and mindfulness. It pulled me into the world of meditation three years ago, though I took a long break from it at one point. I hope it helps you the same way it helped me, though you have many many choices (thanks to the technology age).
The site I linked has all the text you need, but there are updated versions available on amazon.
Anything by Jon Kabat Jinn is also awesome. You'll find plenty how-to's on youtube, though there are many.
Wishing you an awesome meditation journey.
Best.