Here's our second big book of Sudoku's -- with a whole new set of puzzles. The diagrams are exactly as big as those in Volume A but without the little ScratchPad lines at the bottom. And we've learned a lot since our first book, so the Sudoku's in Volume B are better than ever. And with large-print diagrams you can still write your possibles in the squares and just leave them there. As we like to say, "erasing is optional."