X-link to the DRM-free megathread for the new StoryBundle, good for the next 2 months:
The 2015 NaNoWriMo Writing Tools Bundle, which contains Exactly What It Says In The Title, providing aspiring authors with practical advice guides on storytelling, worldbuilding, and character creation, as well as handling professional career things like book signings and sales copy and branching out into TV writing, etc. FWIW, there's a lot of advice books from successful science fiction/fantasy authors in it, in case you happen to be inclined towards trying your luck at that genre.