I want to write a type of pamphlet or magazine to sell, what would people want to read about?

I’m fourteen & I think it would be fun to make a magazine or pamphlet on something people would like to know about & sell. I could make a short magazine for teens, with makeup & fashion tips, advice, quizzes, that kind of thing. Or I could make a more adult short magazine with info on more important topics. I just don’t know. Because I think a teen one would be less popular & have less profit. Any ideas?

Where can i find information on buy/sell/sell short/buy to cover and order type [limit/market/etc] for stocks?

Where can i find information on buy/sell/sell short/buy to cover and order type [limit/market/etc] for stocks? I want to know what these options mean. I’m complete new to stocks. Hopefully a site for dummies like me.

What is the type of stock order called when you only agree to short sell a stock at a certain price level?

For example, I know that I can place a Buy Stop order if I want to take advantage of momentum from high volume at a price level above the existing level. This is only when I’m long on a stock. I want to activate a sell short once it hits a lower price level .Basically, I am asking for the name of the concept of a Buy stop except when you apply it to a short sale trade. Thanks.

The stock market is investing or type of gambling?

My friends and family think that my intention to earn money by investing in the stock market is a stupid job, no better than roulette in the casino. How can I prove to them that this is not so?
Thank you!