Is the book garfield his 9 lives worth anything?

Assuming you are asking about monitary value, that depend on a lot of factors. Condition is probably the most important consideration. In general, though, it looks like I could buy a copy for about eight dollars, so unless it is an old original version, or is in some other way special, you probably will not get much for it. I did find a few listings for it at $38, but if it can be bought for less, who would pay that?