With the revised English version of her textbook 'Indogermanistisches Grundwissen' the author offers an introduction to the fundamentals of Proto-Indo-European that is directed not only to students of this subject but above all to interested people from other disciplines. The author describes the essentials in 17 lessons and gives a clear presentation of the material. Besides generally accepted scholarly opinions, new results of investigations are also presented. A short list of questions at the end of each lesson provides an opportunity to test the material covered. An appendix offers lists of the International Phonetic Alphabet and Greek characters, and an index of terms allows easy finding of topics.