<P>Beverly Cleary has given books to each member of the Quimby household except Mrs. Quimby. Now she gets her turn at last in a story that hits the high and low points of a working mother's life as seen from Ramona's seven-and-a-half-year-old viewpoint.</P><P>Inevitably domestic tensions, not without their amusing side, occasionally arise. Mr. and Mrs. Quimby sometimes forget who is to do what, as when the Crock-Pot is not plugged in and dinner remains uncooked. Beezus acquires a ludicrous teased hairdo at the student body shop while Ramona gets a becoming pixie haircut. Ramona, who feels unloved, takes to twitching her nose like a rabbit in a cozy picture book until her teacher becomes concerned that something is making her nervous.</P><P>Yet Ramona is wrong. She <I>is</I> loved, and readers will rejoice with her when she discovers the wonderful truth. Few writers today are as skilled as Mrs. Cleary at showing families in the round, and here she is at the peak of her powers.</P>