The 4th International Conference on Internet of Things (CIoT 2022) will be held June 25-26, 2022 in Copenhagen, Denmark. Authors are invited to submit papers by May 28, 2022 on topics related to IoT including security, applications, networking and more. Accepted papers will be published in the conference proceedings and selected papers will be published in related journals. Important dates include the submission deadline of May 28, 2022 and author notification by June 10, 2022.