In this paper, we will give an overview of the reconstruction process of the Swedish treebank Talbanken, created in the first half of the 70’s. Talbanken contains both written and spoken material, both encoded in the MAMBA-format. The goal has been to construct two new versions of the original data, one based on phrase structure and one on dependency structure. The outcome of the reconstruction, i.e. different versions of Talbanken, is available for non-commercial research and educational purposes. 1