A chart of a few guitar chords

My aim is to learn all the majors, minors, sharps and 7's for A-G.

THE WAY TO READ THIS CHART.
There are six strings, the left most vertical line, corresponds to the top string of your guitar and the bottom is the right most string. The dot on the grid tells you what fret and string to hold on your guitar, fret 1 being the first horizontal line from the top. If there is a number besides the horizontal line, e.g.; 4 then the top column would correspond to the fourth fret on your guitar.