ABD ehk Luggemise-Ramat Lastele
ABD ehk Luggemise-Ramat Lastele is an Estonian language textbook written by Otto Wilhelm Masing and published in Tartu, Estonia in 1795.
ABD was the first Estonian alphabet book with a separate title page, and it also 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.