This document contains sample emails for a language learning lesson plan, including formal, semi-formal, and informal emails. The first email is a formal letter from a Finnish university student named Jaana Nikkinen inquiring about an English language summer course, specifically regarding course levels, hours, accommodation, and extracurricular activities. The second email is from Jaana in a semi-formal tone asking similar questions about the summer courses. The third email is an example of an informal message between friends catching up.