From the detailed record view, click on the blue Where is this? link to open the location page for the item or book stacks floor map, when available.
As always, if you have difficulty finding a book on the shelf, use the Request recall or delivery [2] link for staff search and delivery.
Example
Links
[1] http://www.library.yale.edu/libraries/images/stackguide.pdf
[2] http://web.library.yale.edu/help/orbis/patronRequest.html
[3] http://ill.library.yale.edu/illiad/illiad.dll?action=10&form=30&sid=scan-orbis&genre=Scan&PhotoJournalTitle=%20Lao%20ren%20he%20da%20hai%20/%20%E8%80%81%E4%BA%BA%E5%92%8C%E5%A4%A7%E6%B5%B7%20/&CallNumber=%20PS3515%20E37%20O419%201970&Location=sml&ItemInfo2=2132386