R is for Reference Guide

Last year when I was killing time at Borders I found this book in the craft section.  It was $40, but after spending almost a full hour with it, I knew it would be one of the best $40 outlays of my life:

The Sewing Book by Alison Smith

This is an amazing resource, most especially to someone who needs to know what a nap is (apart from a cozy time of sleep in the middle of the day), or can't visualize how to put in a zipper by written instructions only.  I highly recommend it!