10 essential email design tips from Justine Jordan

http://content.myemma.com/h/i/268624866-10-essential-email-design-tips-from-justine-jordan

10 Awesome Hacks For Emails That Convert

https://designschool.canva.com/blog/newsletter-design/

How to get your emails opened

http://www.jodieadam.com/?p=231

5 Email Design Best Practices Every Marketer Should Know

https://blog.aweber.com/email-marketing/the-5-email-design-best-practices-every-marketer-should-know.htm

Using Emoji in Email Subject Lines

http://directmailmac.com/blog/2013/10/emoji/

Designing Emails That Actually Work (Slideshow)

http://www.slideshare.net/LindsaySiovaila/mixwest-emaildesign

6 Email Tips and Tricks That *Don’t* Actually Work

https://blog.hubspot.com/marketing/email-tips-that-dont-actually-work

The Ultimate Guide to Preview Text Support

https://litmus.com/blog/the-ultimate-guide-to-preview-text-support

Email Titles that Get Clicked On

http://www.benchmarkemail.com/blogs/detail/email-titles-that-get-clicked-on

Is there an ideal subject line length?

http://www.marketingsherpa.com/article/chart/subject-line-length-success

Six tips to use symbols in subject lines

http://www.emailmonks.com/blog/email-marketing/6-godly-tips-to-use-symbols-in-subject-line/

The Ultimate Email Optimization Infographic

http://contently.com/strategist/2014/10/10/the-ultimate-email-optimization-infographic/

5 Embarrassing Habits That Keep Your Emails From Getting Clicked

http://unbounce.com/email-marketing/5-embarrassing-email-marketing-habits/

Get Your Email Opened: First Impressions Make an Impact

https://litmus.com/blog/first-impressions-make-an-impact