Abckiria

right|thumb|The first page of Abckiria Abckiria (also sometimes spelled ABC-kiria, and spelled "ABC-kirja" in contemporary Finnish), in English "ABC book", is the first book that was published in the Finnish language. It was written by Mikael Agricola, a bishop and Lutheran Reformer, and was first published in 1543. Agricola wrote the book while working on the first Finnish translation of the New Testament (which was eventually finished in 1548 as Se Wsi Testamenti).

Abckiria was a primer meant to teach the basics of reading and writing. It contains the alphabet, some spelling exercises, and catechism. The first edition had 16 pages. The second edition, which was written in 1551, had 24 pages. No complete copies of either are known to exist, but general contents of the book have been discerned from the existing material.