There are three ways to catalog your books with Readerware:
Auto-Catalog - You scan the barcode or enter the ISBN (ISBN-10 or ISBN-13). Readerware searches for the book and catalogs it automatically complete with cover art.
Drag and Drop - You search for the item at any one of the supported sites, then drag from your browser and drop on Readerware, it is cataloged. Designed for older titles that may not have an ISBN or LCCN, but also useful for eBooks and while browsing. You can search by author, title etc. Select from the Web menu to open the Readerware search pages in your browser, then drag & drop. There are additional sites available when using drag & drop.
Data entry - You can always enter items the old fashioned way, just type them in.