Rebecca, Launch Apple System Profiler in your Utilities Folder. When the window opens, click on the System Profile tab at the top. The serial number should be listed there. Cheers, John On 10/31/03 12:14 AM, "Rebecca J. Hoffman" <rebecca at syracusenet.net> wrote: > I just bought Apple Care for my not-quite-one-year-old iBook. The > registration requires the iBook's serial number. Can someone please > tell me where the serial number is?