Rubuta ci gaba don wannan sakin layi - Littattafan da suka gabata tare da ɗan wasan tsere da likitan likita Asle T. Johansen sun kasance na nau'in "ƙwararrun ƙungiyoyin hawan keke", tare da girmamawa kuma akan falsafar tafiya. Waɗannan tafiye-tafiye sun haɗa da hawan keke a duniya a cikin kwanaki 80; hanyar Mao's Long March; a kan rufin duniya a Tibet; da kuma ta Andes zuwa tushen Kogin Amazon. Aikin 2007 na Efskind shine jagorantar gungun masu kekuna ta hanyar Yaƙin Vietnam, daga Hanoi ta My Lai zuwa filayen kisan kai na Kambodiya. Efskind ya kuma yi aiki a matsayin likita a lokacin yakin basasa na El Salvador
kuma a Falasdinu, yayin da yake kokarin neman basirarsa a matsayin mai zane.