The File Selection Dialog Box Bookreader uses the same dialog box (File Selection) for the File menu choices of Open Book... and Switch Library.... Use the File Selection dialog box to see a list of files in any directory to which you have access and to select a file name. Select an item in the following table for more information. Information About Tasks Related to this Dialog Box Filter | Opening a Book not Shown in the Library Window Directories | Changing Your Library Files | Selection | For information about using the OK, Filter, and Cancel buttons, seeStandard Buttons .