This report has many uses. I used to use it for building a new shops stock from an existing shops stock. It allows you to enter 2 years to compare sales, gives you last delivery and last sale date, shows all in stock or on order stock, publisher, supplier, and other bibliographic data.
As with any report file you need to download this zip file then unzip it (double click usually does this) and copy the resulting .rtm file into your C:\Bertrams\Bertline 401\Reports folder on your main computer (Server). If you’ve done this correctly you will be able to run the report from your Backoffice, reports, Custom reports area.