There is no separate pricing module.
Book Keeper smartly remembers previous prices and displays that automatically.
For example, if you sell
item1 to Customer A for 100 rs
item1 to Customer B for 200 rs
So, next time, if you are going to sell item1 to Customer B, it will display you 200 rs automatically.
You can set default selling price of item while creating items in Item Master.
Incase you want to send price list to your customer, just go to Reports > Inventory Summary report, choose Display Sale Price