The impact of COVID-19 has challenged the long accepted 'norm' in delivery of psychological therapy . Public policies designed to reduce transmission have made it extremely difficult to meet with service-users safely in the traditional face-to-face context . E-therapies have existed in theory and practice since technological progress has made them possible . They can offer a host of advantages over face-to-face equivalents, including improved access, greater flexibility for service-users and professionals, and cost savings . However, despite the emerging evidence and anticipated positive value, implementation has been slower than anticipated . Concerns have been raised by service-users, clinicians, and public health organisations, identifying significant barriers to the wide spread use of e-therapies . In the current climate, many clinicians are offering e-therapies for the first time, without prior arrangement or training, as the only viable option to continue to support their clients . This paper offers a clinically relevant review of the e-therapies literature, including effectiveness and acceptability dilemmas and challenges that need to be addressed to support the safe use and growth of e-therapies in psychology services . Further research is needed to better understand what might be lost and what gained in comparison to face-to-face therapy, and for which client groups and settings it might be most effective.