Explore a conference talk introducing a novel pen input technique that utilizes precision grip postures for unimanual pen and touch interaction. Delve into the research behind 33 candidate postures, their effectiveness in controlled tasks, and the development of a real-time convolutional neural network recognizer for 10 selected postures. Discover application demonstrations for document annotation and vector drawing, and learn about the results of a usability study validating this innovative approach to pen-based input.