Four tips for effective emailing are: 1) Understand your readers' communication styles using DiSC profiles to tailor emails appropriately; 2) Avoid overusing email as a conversational tool, for constant checking, or unnecessary reply-alls; 3) Use in-person or phone communication for feedback, deliverables, announcements, and policy updates instead of relying primarily on email; 4) When emailing large groups, include a brief overview upfront (BLUF), attach supporting documents, and use a friendly tone at the beginning and end.