The Email Marketing Glossary - the letters I,J,K
Incentive
A reason to take action, which might include special offers, useful information, etc.
Inventory
Inventory is commonly used in reference to the subscriber base or amount of a specific list or email newsletter.
Jargon
A word or term that is unique to a particular business or area of knowledge and not generally known to the public at large. In most cases, avoid the use of jargon.
KISS
Keep it Simple, Stupid - a directive to keep the communication clear, concise and intuitive to improve the likelihood the prospect will take action.