Network Effect is the fifth entry in The Murderbot Diaries by Martha Wells. It's the first full length novel of the series. The previous 4 Murderbot stories have all been novellas. The series follows an AI "SecUnit", an android whose responsibility is to protect those who it is contracted to, named Murderbot. Murderbot has gained some freedoms not usually afforded to bots and much of the series' charm comes from Murderbot trying to understand the human condition.