"The book is uninteresting."
As far as i understand it:
있습니다 = 'to be / to have' (location, existence) formal form of 있다 , 있어(요)is informal/casual. 없습니다 = 'to not be/to not have' (location, existence) from 없다, 없다어(요) is informal/casual.
So for example 맛있습니다 mean 'to be delicious/cool' and 채미없습니다 mean 'to be uninteresting'.