We don't know if it works this way in your house but, around here, when you move a stack of 'stuff', strange and wondrous 'stuff' appears. Case in point, these three photos from author events in 1993 in a very young Seattle Mystery Bookshop.
Earl Emerson in to sign Morons and Madmen on July 20, 1993
Linda Barnes in to sign Snapshot on June 1, 1993
Donald E. Westlake in to signs Don't Ask on April 15, 1993
Thanks to Michael and Gyngr Schon of The Old London Bookshop for sending those way back in August of '93!