Imprisoned Egyptian activist Alaa Abdel-Fattah has received books, pens and paper and comic magazines for the first time in two and a half years, his family has said. “People of the world, Alaa got books for the first time in years!” his sister Mona Seif tweeted on Thursday. “He received the books that his mother gave him, as well as a Mickey [Mouse] comic magazine, a family favourite and longstanding tradition of the Seifs,” the family said in a statement released Friday. However, the statement highlighted other causes for concern since their latest visit this week. “He still has not been all…