Purpose: The Video Series for Text Messaging System Implementation is designed to assist public health departments in implementing a texting system that can be used to reach audiences (including employees and the public) with public health emergency communications. Tool Description: This series of videos is designed to assist emergency preparedness and response programs in implementing a texting system that can be used to communicate with employees and the public. This tool comes in a video format and includes interviews with national experts reflecting the most current thinking in the field of mobile health. The content of the video series is broken-up into parts which focus on the following: - Text messaging for reaching a broad range of the target population - Research findings on what specific audiences want from a public health texting program - Technical information about how texting works - Legal implications of using text messaging services By emphasizing these objectives, this video series is an effective and engaging training tool that health departments can access at minimal or no cost Who should use it?: The videos are intended for emergency preparedness and response program managers/staff, as well as community-based organization leaders in order to increase preparedness among their communities, particularly those who belong to at-risk population subgroups. In addition, the lessons learned may also be applicable to a range of public health and community-based organizations' communications outside the realm of emergency preparedness and response. The video series can be accessed online and used at state and local health departments and/or community organizations. Benefits: Texting is a powerful mobile technology that can be especially useful in reaching challenged communities such as geographically isolated populations, and certain vulnerable populations.