I know it's written for "that other game", but Sullivan's RP Survival Guide has been my go to of introducing people to roleplaying.
http://rpmadesimple.com/the-rp-survival-guide/
A lot of the stuff under the "RP Survival Guide" drop down still applies in general.
It's a little archaic since it's based around a mid set of how roleplay was viewed when 'that other game' launched and, well, MMO's hit a different demographic now as compared to before, but a lot of the suggestions still work.
http://rpmadesimple.com/the-rp-survival-guide/
A lot of the stuff under the "RP Survival Guide" drop down still applies in general.
It's a little archaic since it's based around a mid set of how roleplay was viewed when 'that other game' launched and, well, MMO's hit a different demographic now as compared to before, but a lot of the suggestions still work.