Sarah,

You mentioned in your original post you were starting to get into Antique sales. A book you might want to check out is:
"How to Make $20,000 a Year in Antiques and Collectibles Without Leaving Your Job" By Bruce E. Johnson.
I myself don't have this particular book but it does have a very good reveiw at Amazon.com where it is available for $6.99 new and $4.75 used.