If you want to sell some products on the internet, you have to learn copywriting.
Copywriting is a skill for motivating readers to take an action which includes buying products, signing up to become a member, reply, leaving a comment, etc.
Whatever you want reader to do on the internet, you should have copywriting skill.
Copywriting skill can increase your income by ten times.
The skill is used everywhere, such as TV commercials, product descriptions, sales letters, email-magazines, magazine advertisement, signboard.
Copywriting is based on human psychology.
Copywriters affect readers feelings.
Then readers would take action as intended.
Prominent copywriting skill eliminates the need for salespeople.
Some say copywriting skill is like automated salespeople on the internet.
So I learned the skill for a long time to increase my income.
I read many books or web based manuals to master the skill.
One of the books I recommend is this book.
I have read this book many times repeatedly.