Tablescaping is placing accessories on a table top to provide interest (and sometimes function). I'll admit that I have a lot of decorative accessories in my home in which their only purpose is to look good. A few items are functional, but most are there to look good. On my coffee table, I have a few decorating books and several decorating magazines (Traditional Home, House Beautiful, Elle Decor, At Home in Arkansas, and HGTV Magazine). There is also an art piece I purchased a few years ago (glass knot), and something I would love to get rid of --a metal bowl with wicker balls. I just haven't found anything more interesting to replace it with yet.
Tablescaping should be done in 3's--have a minimum of three items on your table top. A single piece would look lost (and lonely) on the table by itself. Here is a picture of one of the end tables in my living room with just the lamp on it:
Now here is what the end table looks like with a few accessories placed on it. I actually do use the candle and candle snuffer on occasion and I have read all of the books beneath the plant. So, there is some function to the accessories.
I actually have more than three things on my table top, but as a grouping, I see the item as 3's: plant and books, candle and snuffer, and vase.
All the table tops in my home have been tablescaped. I think it adds interest to a room and provides a point of conversation. So, if you have an empty table top or one that lacks interest, consider purchasing new accessories to add some WOW!! to your table.