Practical usage of punctuation marks

Though punctuation is not in itself part of the grammatical structure of a language, it cannot be passed over in silence in a treatise on grammar, as it may, and often does, acquire grammatical significance. The other layer of language with which punctuation is connected is of course its phonetic layer, namely intonation.
In different languages the relations between punctuation, intonation, and grammar (syntax) may be different, that is, punctuation may tend to indicate intonation to a greater or to a smaller extent. It certainly always has something to do with grammar. Now from this viewpoint it may be said that in English punctuation is connected with intonation to a greater extent than in Russian.

INTRODUCTION
CHAPTER I The definition of punctuation marks
Punctuation at the end of the sentence
Repeated dots
Punctuation marks within a sentence
The semicolon and the colon
The comma
CHAPTER II Practical usage of punctuation marks
CONCLUSION
List of literature