#1. The Copywriter’s Handbook by Robert Bly 

#2. Content Rules by Ann Handley and C. C. Chapman 

#3. Content Inc. by Joe Pulizzi 

#4. Everybody Writes by Ann Handley 

#5. Don't Make Me Think by Steve Krug 

#6. On Writing Well by William Zinsser 

#7. The Elements Of Style by William Strunk Jr. and E.B. White 

#8. Writing Rules by Roy Peter Clark 

#9. The Well-Fed Writer by Peter Bowerman 

#10. Content Marketing For Dummies by Susan Gunelius