Welcome! You’ve found our new lectures series, congratulations! In addition to being a bunch of ultrasound enthusiasts our team is also excited about the broader practice of perioperative medicine. This (growing) group of lectures is targeted for residents spending time with us in the preoperative clinic, but anyone can feel free to enjoy. Each page will also contain a link to the recommended reading and PBLD-style questions for the topic. As always, we appreciate feedback, suggestions, and effusive praise (joshua.zimmerman@hsc.utah.edu.)