Christoph Wortberg is a German language study and reference series. It is a book about languages, edited by Christoph Wortberg. The series includes over 1,000 pages of language lessons, with grammar reviews, vocabulary lists, and exercises for each language. It also includes a lexicon of words and phrases that are common in the target language, as well as a dictionary of the target language. The languages included in the series are: Afrikaans, Albanian, Arabic, Armenian (Armenian etymology), Azerbaijani, Basque, Belarusian, Bosnian, Bulgarian, Catalan (Catalan etymology), Chichewa (Nyanja), Chinese (both Mandarin and Cantonese), Croatian (Croatian etymology), Czech (Czech etymology), Danish (Danish etymology), Dutch (Dutch etymology), English, Estonian, Finnish (Finnish etymology), French, Georgian (Georgian etymology), German (German etymology), Greek (Greek etymology), Hebrew (Hebrew etymology), Hindi/Urdu/Punjabi/Sindhi/Manx Gaelic/Irish Gaelic/Scottish Gaelic/Manx/Manx Gaelic/Scottish Gaelic/Gaelic etymologies of "origin"), Hungarian, Icelandic (Icelandic etymologies of "origin"), Igbo (Ibo etymology), Indonesian, Italian (Italian etymologies of "origin"), Irish Gaelic (Irish Gaelic etymologies of "origin"), Japanese, Javanese, Kalmyk Mongolian (Kalmyk Mongolian etymologies of "origin"), Kazakhstani Khoisan languages ("Khoesan" in this source) Kyrgyzstani languages ("Kyrgys" in this source) Lao/Lao-Thai /Lao-Khao Thai-Lao-Kraj Thai-Lao-Nyaw Thai-Lao-Tai Thai-Lao-Tai Tham Kesi Lao-Lao Tham Kesi Lao-Lao Tai The Christoph Wortberg series is a book about the languages. The book is edited by Christoph Wortberg. It contains teaching material on grammar reviews and vocabulary lists for over 1,000 pages. It also includes a lexicon of words and phrases that are common in the target language and