The five puzzles with letters provided are End View puzzles (also known as Easy as ABC puzzles in some places). Their solutions are given below. Each puzzle contains precisely one of the letters B, L, A, C, or K. Any square in that puzzle which contains that letter is to be painted black.
Painting the squares black in the empty grid which are in the same positions as the black-painted squares in the five puzzles leaves a relatively small number of un-painted squares. Exactly one of the five puzzles has a letter in the square in that position. Transferring those letters into the unpainted squares in the empty grid and reading top-to-bottom and left-to-right reveals the answer: NOSEEUM.