One tool traders use to identify a trend in stock price is the trend line. It is a line drawn between the high and low point for a stock over a period of time. If the stock price goes up from $10 to $20 to $30 over a three year period, the analyst can plot a line from $10 to $30 starting in year one and ending in year three. The first year marks the first plot in the series, it is the baseline price of $10. The second year represents the beginning of the trend at $20, and the third year marks the continuation, or possibly the end of the trend, at $30. In this way, trend lines can be used to either predict the next data point along the trend or look for a reversal of the trend.
Sonia Nazario 's best-selling novel, "Enrique's Journey", also depicts the process and obstacles of train migration. While this book mainly focuses on the journey of one person, it speaks for the thousands of other migrants who have struggled to reunite with loved ones. Nazario describes the emotion and difficulty experienced by entire families who are separated by the necessity to become more economically stable. The dangers of crossing Central America and Mexico by train are described in explicit detail as migrants of all ages face street gangs, corrupt officials, hunger, exhaustion, discrimination, poor weather, and deadly trains.