Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: An alert for expectant parents.

Susan Ludington-Hoe provides many tips for stimulating your baby both before and after birth--but whereas these were better than none at all several years ago now they show wear. Instead, parents expecting are advised to review the most current evidence replacing Dr. Ludington-Hoe's. For example, see Dr. Sarah Brewer's Super Baby, which tells how as a physician she used Dr. Brent Logan's BabyPlus prenatal enrichment system discussed on www.babyplus.com (I understand that his own book, Learning before Birth, is due shortly through www.1stbooks.com, and contains the most up-to-date material). My own experience with this technology for two children, also the amazing reports from mothers I attended as a nurse, convinces me that a major breakthrough in fetal stimulation has taken place.