The Library of Congress maintains a digital preservation blog called The Signal. This book contains a series of reformatted posts from that blog on the subject of personal digital archiving. Specifically, the topics include guidance for such things as choosing file formats and adding descriptions to digital photographs; first-hand accounts of working with and preserving personal collections; descriptions of outreach activities and interviews with library professionals on the subject of personal digital archiving, and many others. Photo albums, letters, home movies and paper documents are a vital link to the past. Personal information we create today has the same value. The only difference is that much of it is now digital. Preserving digital information is a new concept that most people have little experience with. This book provides knowledge and tips to ensure that digital materials last a lifetime by taking steps to preserve them.