Microsoft's Office website provides free training that helps users get started and successfully perform everyday tasks in Microsoft Word. Trainings are conducted by a series of videos and are available for PC, MAC, tablet and iPhone versions.
Microsoft Office's tutorials are organized by subscription type, followed by the experience level of the user. This site provides training for version 2007 and newer.
Many independent training websites offer MS Word tutorials, including CourseHorse, Udemy and Lynda.com. CourseHorse provides local, in-person training while Lynda.com and Udemy's training consists of self-guided webinars. Both Lynda.com and Udemy offer a range of topics that can be useful if you are seeking to learn a specific skill. Lynda.com offers paid members unlimited access to all tutorials.