الكتاب الذي تحدث عنه مروان ببرنامج قريب جدا و" خاف منه"
http://books.google.fr/books?id=sQYqRCIhFAMC&dq=power+of+now&printsec=frontcover&source=bn&hl=fr&ei=PnN5TPPbOJCQjAfcq6XLBg&sa=X&oi=book_result&ct=result&resnum=6&ved=0CDkQ6AEwBQ#v=onepage&q&f=false
http://books.google.fr/books?id=sQYqRCIhFAMC&dq=power+of+now&printsec=frontcover&source=bn&hl=fr&ei=PnN5TPPbOJCQjAfcq6XLBg&sa=X&oi=book_result&ct=result&resnum=6&ved=0CDkQ6AEwBQ#v=onepage&q&f=false