The internet is a minefield of fake news, alternative facts, bogus videos and doctored images — all masquerading as the real thing. The prevalence of false information has become so great it is often difficult to know whether “news” is authentic. Historian, economist and writer Bruce Bartlett’s new book aims to help readers in the vetting process. The Truth Matters: A Citizen’s Guide To Separating Facts From Lies And Stopping Fake News In Its Tracks offers advice against bias, and insight into the complex media landscape. Bartlett, a former White House adviser under Presidents Ronald Reagan and George H.W. Bush, is also the author of many other books and articles. He recently joined the Knowledge@Wharton show on Wharton Business Radio on SiriusXM channel 111 to talk about his latest work.