Instruct: Classify the given review into positive or negative sentiment.
Query: Reviewed in Woman Newsmagazine, Winter 1999:

Addressed to adolescent readers, Sweet Secrets is a charming anthology of personal and fictional stories of menarche (first menstruation) told by women aged 16 to 93, from diverse cultural backgrounds.The authors present factual information on the physical and emotional changes of puberty in a candid, anecdotal style. This handsome, readable book also features observations on menstruation's cultural and religious significance in ancient and aboriginal societies....These uplifting tales of women's celebrations, unusual in a puberty education piece, set a new standard for progressive and enlightened learning.The unique and sensitive approach to menstruation offered in Sweet Secrets guarantees its place as a valuable resource for those seeking help in discussing menstruation with preteen girls.--Besty Harvie