Resources are added to a Sophie book by dragging them into the Sophie window. Resources dropped onto a page appear on the page and in the book’s resources. Resources dropped onto the Library Tab are added to resources but do not appear on the pages of the book. Such resources are available for use by dragging them from the library onto a page. Resources can be added by use of Import File or Link to File. Resources added by Link to File appear in the resource palettes, but the file is not imported into the Sophie book. Resources are deleted from a Sophie book by selecting a resource from the resource palette and pressing delete key.