A stereoscope brings the world to 3D life for students in this geography class. (Library of Congress Prints and Photographs Division photo copyrighted in 1908 by Underwood & Underwood)

Returning to resources — the Library of CongressPicture This Blogbrings wonderful surprises, as well as researching inspiration. A recent post by LOC librarian Kristi Finefieldexplains how details in thisphoto led her to discover what a1908 student wasdoing—using stereo images to study geography—and to find the...