literacy

	Half a HeroQuest rules question, but its really a Glorantha question.
	I didn't see any mention of literacy for any professions other than Sage. Professions that might be thought to imply literacy like lawspeaker and skald instead contain strong implications of not requiring (or involving) literacy, such as mentioning memorisation of key knowledge or explicit references to oral tradition. 
	So, should we assume that all characters that are not sages and have not explicitly claimed otherwise to be literate, are totally illiterate? 
	
	(though for my game purposes, I going to make the assumption that knowledge of Tradetalk includes at least minimal literacy in that language - I've been using quite a bit of older material to pad out my campaign, and too many adventures from earlier supplements seem to make the assumption of literacy )
	Cheers

		David