This is an example of a Diary. In a diary, you can write things like words and sentences and such. With a little luck and some know-how, you can even form coherent thoughts, convey ideas, and otherwise explain stuff and whatnot.

The only problem with these diaries is that they don't have a bilt-in speel cheeker, so you'll have to grit your teeth and hope your fourth-grade education doesn't betray you.