Violence For books rated Children (C), violence must be minimal and not offend parents whose younger children are the primary audience.
Language For books rated Children (C), very mild profanity may be used (e.g. "damn" and "hell"), and they cannot be used aggressively or frequently.
Sexual Content For books rated Children (C), there can be no suggestive/sexual references or material. Very mild behavior/references (e.g. kissing, dating) is acceptable.
Drug Use For books rated Children (C), alcohol and tobacco use can be present as long as it is not glorified or encouraged and is infrequent. Generally, material must not offend parents whose young children are the primary audience.