Learn Mandarin in 20 days

"Learn Mandarin in 20 days" is a simple handbook which guides you to learn practical Mandarin Chinese in 20 days.
The 20 days course includes:
Day 1-Chinese Pinyin
Day 2-Chinese Pinyin Initials
Day 3-Chinese Pinyin Finals
Day 4-Spell in Chinese Pinyin
Day 5-Tones of Chinese Pinyin
Day 6-Chinese Pinyin Neutral tone
Day 7-Greetings
Day 8-Goodbye
Day 9-Thanks
Day 10-Apologies
Day 11-Compliments
Day 12-Approval
Day 13-Disapproval
Day 14-Name
Day 15-Age
Day 16-Nationality
Day 17-Professions
Day 18-Family Members
Day 19-Hobbies
Day 20-Meal