There is some yellowing on the page sides, but I believe there are no noticeable stains or tears. There are no writings. I do not have any pets. I do not smoke. Please understand that this item is stored at home and has been used a few times. m(_ _)m It will be shipped via Yu-packet Post. "Ukaru! Information Processing Security Support Specialist Afternoon Problem Collection [2nd Edition]" Naoki Murayama Price: ¥2200 #NaokiMurayama #book #electricity/machinery/electronic_communication