: Listings are available on Ozon and Yandex Market .
: The workbook is typically published in two parts (Part 1 and Part 2).
: Rules for dividing words into syllables and proper word hyphenation (perenos), including words with "й" or double consonants.
: Rules for vowels and consonants, stressed and unstressed vowels, and the role of letters like е, ё, ю, я .