If you have never encountered, or had to provide sustenance for, kiddos who eat a narrow, self-selected range of foods, count yourself among the rarest of gastronomic unicorns. For the rest of us, a source that offers context and sets a forward course ought to be a home run. The author of Picky has stepped up to the plate and delivered a hit, it seems, garnering serious coverage in serious publications. This reader is on the fence about how to score it. History professor Helen Zoe Veit cannot