By Karen Lema MANILA (Reuters) – Books about the late Philippine dictator Ferdinand Marcos and his brutal era of martial law are flying off the shelves, spurred by “panic buying” after his son and namesake won a May 9 presidential election. Ferdinand “Bongbong” Marcos Jr.’s presidency, set to begin on June 30, has many people worried about losing access to books and other accounts of his father’s rule, given his family’s decades-long effort to rehabilitate its name through what critics describe as a campaign of historical revisionism. “They are panic buying,” Alexine Parreno said of her custom…