When moving towards teaching online, teachers are confronted every day with issues such as online moderation, establishing social presence online, transitioning learners to online environments, giving feedback online. This book supports language teaching professionals and researchers who are keen to engage in online teaching and learning. It integrates theory and practice from a research-informed teaching perspective and helps teachers in formal and informal settings to become confident users of online tools. The authors of the 11 chapters draw on a wide range of experience that will aid readers for independent self-training, pre-service teacher training courses, and for in-service staff development. The book also offers inspiration and guidance to researchers starting in the field who will benefit from the succinct overviews of research done in the area of online language teacher training.