Theorie:
To speak about different types of books, you need the appropriate vocabulary.
Almanac – Almanach (Jahrbuch)
Booklet – Büchlein, Heft
Brochure – Broschüre, Prospekt
Dictionary – Wörterbuch
Encyclopedia – Enzyklopädie, Lexikon
Hardcover – Gebundenes Buch
Novel – Roman
Paperback – Taschenbuch
Periodical – Zeitschrift
Pamphlet – Flugblatt
Picture book – Bilderbuch
Reference book – Nachschlagewerk
Textbook – Lehrbuch, Schulbuch