1) Books are mostly gimmicky just as news are for trading, but I think you should assume %'s should be dependent on how much you are willing to lose.

2)good

3)good

4)Somewhat make it up as you go, but basically you need to make sure some metrics work. Some people are more hype oriented for trading on hype like they will buy stocks that are being talked about more like when the CEO is on the tv talking etc. But every investor should check metrics to see if they make sense. A company has to have some really good prospects for it to be sporting a large future earnings number. Understanding and researching a bit about the company and other companies in that market segment which you can usually garner at the morningstar site.

5. Then invest in top 1 or 2 companies that are in a specific sector on a down day on the market. Make trades that you know will have some returns but will not risk you too much. Tech and biotech are very much growing, but the have risks associated with them. Buy brand names that you know are good. Look at monthly activity and price floors. There are price floors where some stocks will stay at a single price like facebook stood at 75 for a lot of this year or like good stood at 430 for a while before shooting up to 540 on some good news/earnings reports or qualcom which stalled at 70 because of it's china deal being stuck in process.

6.If you buy mutual funds use vanguard. All other ones cannot compete with their low expense ratios. For starting out buying stocks n etfs use fidelity or schwab (i'd recommend either of the two for starting out as an investor, because mutual funds can also fail as well it is good to know how to do regular investing).

7. You should consider the easier route by looking at past few months and past year. There doesn't need to be a particular event for a stock to be a good time to buy. You can also buy a stock based on it's just a time where it got beat up on some random news but is still a good stock. Another thing you should know is growth numbers are fidgety animals. Growth numbers don't make sense for many tech businesses or other types of fast growing businesses. One reason is if you have say 10 enterprise customers paying like a million dollars per year and then you get another 10 customers you suddenly are growing at 50% rate.

8. Diversification is a good start, but since you are starting out i'd choose at most 5-6 stocks, then as you grow change your holdings number for how much you want to risk. You can definitely put more into etfs or mutual funds when you have more money to play with. Mutual funds often have a required minimum to put in.

9. When you are starting out it may be helpful to cut your losses when you are losing a good 30%+ on a stock, unless you think that it will make a real turnaround. This is because generally a good break from the price target can be disasterous and you can always reinvest whatever you have left into something else.

Investopedia is great. You should also look at www.finviz.com . They outline good metrics for stocks in green and bad ones in red so you can learn a bit more to look at. There are other things you can realize from finviz like insiders buying the stock or not. If insiders are buying a stock they think it will go up. If insiders sell the stock they may (or may not) think the stock will fall.