X-link to the DRM-free thread for a new StoryBundle:
The Write Stuff 2016 curated by Kristine Kathryn Rusch, a former Magazine of Fantasy & Science Fiction editor and multiple award-nominated author in her own right, containing DIY creative writing & professional career advice books for aspiring authors.
Also, the new Humble Bundle is mostly for fiction, but has at the top tier Clarion Workshop co-founder Kate Wilhelm's memoir/creative writing advice guide.