This paper discusses suitable information concepts for the context of
library and; information science. After indicating that information co
ncepts discussed in this field are roughly divided into three categori
es, objective information; subjective information, and information as
process, the characteristics of each group are examined to indicate th
at each of the three is closely related to the others in, the context
of communication between human minds, and that which of the three will
be emphasized depends on the specific context, such as the informatio
n phenomenon concerned with, purpose of the study, and so on. The ques
tions for further investigation are also mentioned.