1. Transcribe: We still lack transcriptions of 603 letters. A few can be copied and elaborated on from publications (you can find the references to published letters in the metadata), but the rest have to be done. Some letters are in easily legible handwriting, others can be more difficult to read. Many are in Latin or French, but there are also some letters in Italian and German to be done.

2. Check & improve: As the transcriptions were reassembled from several transcribers and sources, they lack coherent transcription principles. All of them should be checked and uniformized according to the transcription rules explained here.

3. Annotate: The letters are full of persons, plant names, and other interesting facts from sixteenth century intellectual life. You can help us by providing more information about the persons, book titles or events mentioned in the letters. Or you can try to identify the plant names in the letters using the names and illustrations in Clusius’s publications or other plants books.

If you are interested in joining the Clusius Community 2.0 and collaborate on the edition in any way, please send an email to the project manager, Esther van Gelder, via Clusius2.0@gmail.com.