Question

What are informal letters
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Answer 1

An informal letter is a letter that is written in a personal fashion. You can write them to relatives or friends, but also to anyone with whom you have a non-professional relationship, although this doesn't exclude business partners or workers with whom you're friendly.

Step-by-step explanation:

Answer 2

Types of letters that contain personal needs that are usually written privately and shown to others using non-standard language.