Search for: Title Author Subject Series Call number that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Optical character recognition devices 1 SEE ALSO broader term Pattern recognition systems 2 Optical communications 3 SEE ALSO narrower term: Fiber optics 1 Optical communications -- Handbooks, manuals, etc. 1 Optical disks -- SEE narrower term: Blu-ray discs 547 SEE narrower term: CD-ROMs 29 SEE narrower term: DVDs 10159 Optical engineering -- Juvenile literature. 1 Optical fiber communication. 2 Optical illusions 5 SEE ALSO broader term Hallucinations and illusions 6 SEE ALSO narrower term: Upside-down books 10 Optical illusions -- Experiments -- Juvenile literature. 1 Optical illusions in art. 1 Optical illusions -- Juvenile literature. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >