All writing on the problem statements and explanations is erasable with a pencil. There are parts where blue pen is used to check the solved problems. I think it's easier to use than those with markings, etc. If you want to check the problems by option, please use it. #Shishi-betsu Hon (Book by Option) #Judicial Examination #Preliminary Examination #Tatsumi Legal Institute #Tanto (Short Answer) #Tanto Kakomom (Short Answer Past Questions) #Tanto Kakomom Perfect (Short Answer Past Questions Perfect)