This document summarizes an internship seminar presentation on spam detection. It discusses how spam emails are unsolicited messages sent in bulk to multiple email addresses. Bayesian spam filtering is used to classify emails as spam or not spam based on analyzing word frequencies. The objectives are to inform users of fake versus real emails and classify emails. A naive Bayes classifier is implemented using a dictionary of word probabilities to determine if emails are spam. The methodology accurately classified emails in testing with a naive Bayes algorithm.