He published his first book "Hizmetkar kim?" in 2007 and it was the first book in a series of seven books called "Hizmetkar Serisi". Starting from 2007, Cenk Hizmetkar Kim? (Hizmetkar Serisi, #1). by. Cenk Enes Özer (Goodreads Author). Hizmetkar Kim? Paperback – January 1, 2012 · Print length. 192 pages · Language. Turkish · Publisher. Ufuk · Publication date. January 1, 2012 · ISBN-10. 6056240290.Read "Hizmetkar Kim" by Cenk Enes Özer available from Rakuten Kobo. Doğru ile yanlış, iyi ile kötü mücadelesi bütün Buy the eBook. Price: $3.99 CAD.