Hi all, I am very fond of Using R for Introductory Statistics by John Verzani, 2005, Chapman & Hall. Regards D. Trenkler -- Dietrich Trenkler c/o Universitaet Osnabrueck Rolandstr. 8; D-49069 Osnabrueck, Germany email: Dietrich.Trenkler at Uni-Osnabrueck.de