Like many of you, I have more cookbooks on my shelves than I actually consult, at least on a regular basis.Some are one-subject cookbooks, say, on apples. Others are books of ethnic cuisines that aren't in my regular repertoire, but may come in handy someday if a reader asks about moussaka or preserved lemons, for example.There are bread-baking books, cookie books, seafood books, community fundraising books.