Whether it be books in your genre, or on the subject of your expertise, or blogs on craft or marketing, reading is an important part of writing. What are some of the resources that you think would be valuable for other authors to read?

Whether it be books in your genre, or on the subject of your expertise, or blogs on craft or marketing, reading is an important part of writing. What are some of the resources that you think would be valuable for other authors to read?