The Worm Tower Composting System - Introduction

Seeing as everything is quiet now in the garden, I thought it would be a good time to look at the worm tower set up.
I plan on doing a small series on this one - similar to the small worm bin weekly series I ran for a year. The updates would be monthly, and the idea is to look more closely at how a stackable worm tower works, how effective it is, and any issues that rise from using it.