ABD ehk Luggemise-Ramat Lastele ("ABD or the Book Reading for Children" in English) is an Estonian alphabet book by Otto Wilhelm Masing published in Tartu in 1795.[1][2]
The work is the first Estonian language book with a title page. For the first time, the book included a guide on how to teach reading. In Estonian, the abbreviation ABC is not used for the alphabet because the letter C does not appear in Estonian vocabulary.[2][3]