My vest patterns are written in a modular format. The basic pattern provides the essential structure for all of my vests and includes notes on choosing and using color and various tips and tricks. Each module includes numerical values to be ‘plugged into’ corresponding spaces in the basic pattern, along with notes and charts specific to your module.
When you buy them all at once, you save $8 off the total price of collecting them one at a time - a savings of 40%!