Hi Susan. Yes, there are subtle differences between English and American Pool.
English Pool tables are smaller with smaller pockets. Smaller balls and are usually red and yellow in colour, with an 8-ball as the main object.
There are different games to American Pool (Most people play Spots v Stripes - like the English version. Pot your seven balls and then the 8-ball). There's a version where the value of the ball you pot
( 1 to 15:
http://www.mercurylei...o.uk/images/spots.jpg ) are the points you gain.
Then there's 9-ball. You only play with balls 1 to 9 (In a diamond formation, as opposed to the triangle formation in the other variations) and you must break by striking the 1-ball. If you pocket the 9-ball (Usually the last to be potted) from the break then you win the "Rack" You can also use a combination shot to play the object ball onto the 9-ball and than can aso win you the "Rack"
The cues used are slightly different too. Professional English Pool players use snooker cues. American Pool cues are heavier. Pros use a cue for the break shot, another for main shots and an even shorter cue for jump shots.
Bet you wished you'd never asked now, huh?