After attending local schools in the small village of Urvaste and the larger borough of Sangaste in 1905, Heiberg began to write poetry when she was sixteen.
[3] Her first poems appeared in an anthology published by the Estonian writer and critic Friedebert Tuglas.
[5]) When she was 16, she went to Tartu where she earned a living performing odd jobs and working as a freelance journalist.
Her stories are not comparable with her talented approach to poetry with its recurrent themes of loneliness, sadness and spiritual darkness.
[1] In 2010 a book, Üks naine kurbade silmadega, was published about Heiberg, her correspondence and some of her poetry.