Nicolai Hartmann 
Studien zur Neuen Ontologie und Anthropologie [PDF ebook] 

This textbook includes important texts by Hartmann, some of them virtually inaccessible before, with a concise introduction to the central themes in Hartmann’s thought. There has been a recent renaissance of interest in his “new ontology”both as systematic theory and in philosophical anthropology. This text serves as an ideal introduction to Hartmann and as a supplement in courses on metaphysics, anthropology, and 20th century philosophy.