Lot of 2 includes volumes 179 and 180 Each measures 10 3/4" x 7 1/4" with 130 pages An amazing array of brain-boosting fun An amazing array of brain boosting fun including Logic Problems, Cross Sums, Figure Logics, Word Arithmetics, Marching Orders, Math Mazes, Trigons, Bingo Plays, Extreme Sudoku, Jigsaw Sudoku, Consecutive Square Sudokus, Square Logic, Tight Fit Sudoku, and Figure Logics Please see all pictures for samples of puzzles you will find inside. Hours and hours of puzzle enjoyment. An amazing array of brain boosting fun including Logic Problems, Cross Sums, Figure Logics, Word Arithmetics, Marching Orders, Math Mazes, Trigons, Bingo Plays, Extreme Sudoku, Jigsaw Sudoku, Consecutive Square Sudokus, Square Logic, Tight Fit Sudoku, and Figure Logics