Lindsay J. (Dartmouth College, USA) Whaley 
Introduction to Typology : The Unity and Diversity of Language [PDF ebook] 
The Unity and Diversity of Language

An overview of the major grammatical categories and constructions in the world’s languages, Introduction to Typologyprovides a thorough and comprehensive coverage of typology in the areas of morphology and syntax, while underscoring the similarities and differences that underlie the vast array of human languages. Pedagogically sound, this introductory text includes a glossary and highlights and defines each new term as it appears. Each chapter concludes with a summary of new terminology and concepts as well as a list of additional, related readings. Introduction to Typology assumes neither prior knowledge of typology nor extensive background in linguistics, making it useful as a primary or supplementary text for a variety of courses, particularly those dealing with grammatical structure and linguistic universals.