Fingerprinting and chemometrics are unseparable concepts. Two new and valuable tutorials were published recently: about food studies  and Chinese herbal medicines .
L. Cuadros-Rodríguez, C. Ruiz-Samblás, L. Valverde-Som, E. Pérez-Castaño, and A. González-Casado, "Chromatographic fingerprinting: An innovative approach for food 'identitation' and food authentication – A tutorial", Analytica Chimica Acta, vol. 909, pp. 9-23, 2016. http://dx.doi.org/10.1016/j.aca.2015.12.042
Y. Huang, Z. Wu, R. Su, G. Ruan, F. Du, and G. Li, "Current application of chemometrics in traditional Chinese herbal medicine research", Journal of Chromatography B, vol. 1026, pp. 27-35, 2016. http://dx.doi.org/10.1016/j.jchromb.2015.12.050