According to an Indiana State University study, the six types of procrastinators are the perfectionist, the dreamer, the worrier, the defier, the crisis-maker, and the over-doer.  The perfectionist postpones tasks and projects due to fear of failure.  The dreamer is the kind of procrastinator who thinks they shouldn’t have to put effort into getting what they want; often, they are people who have grand plans but who get bored or frustrated by the thought of having to do something to achieve them.  The worrier postpones tasks because they worry they’ll be unable to do them.  The defier is someone who thinks a task assigned by a superior is simply not worth doing.  The crisis-maker believes that they work better under the stress and pressure that’s so typical during last-minute work, so they push their work to the last minute.  The over-doer is the procrastinator who commits to many things and then fails to do them, either due to failing to prioritize them properly or due to the sheer overload of tasks.