I recently published a significant update to my Therion training tutorial, suitable for beginners trying to get to grips with this cave survey drawing software. Available to download from here: http://wscc.darkgem.com/footleg/therion/

(If in future this link becomes obsolete then look at the Therion Wiki where the latest link should be found: http://therion.speleo.sk/wiki/doku.php#documentation_in_english )

Looks great     Therion looks pretty powerful... would be cool to learn how to use it, I'll give your tutorial a go at some point soon. And I'll see if I can condense it into a 10 page PDF

Thanks. Tutorials are a big help. Especially here in the states where there aren't many Therion users.