The paper outlines the development in the field of investigation of Slovak word-formation in recent 25 years (1989 – 2014). The paper covers dominant areas in this field, i.e. a theory and methodology (e.g. the concept of word-formation motivation), functions of word-formation motivation, word-formation of verbs, adjectives, adverbs, compounding, the tendency towards internationalization, word-formation adoption of loan words, lexicographic treatment of Slovak word-formation and morphemics, word-formation of proper names, the role of word-formation and the investigation of symmetries and asymmetries in the cross-linguistic study, the role of word-formation in a text etc. These aspects of word-formation are dealt with in the works by J. Furdík, J. Horecký, K. Buzássyová, M. Nábělková and others.