Ever wondered what happened to traditions like leaving a calling card, visiting penny arcades and giving your best friend a beaded friendship pin? In The Huffington Post columnist Lesley M. M. Blume’s new book, Let’s Bring Back , covers them all, including newer bygone miscellany (like CBGB and Polaroids). As the book puts it, it’s “An Encyclopedia of Forgotten-Yet-Delightful, chic, useful, curious, and Otherwise Commendable Things from Times Gone By.”

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