In this issue, guest editors bring their considerable expertise to this important topic. Contains 16 practice-oriented topics including fibroblast activation protein inhibitor (FAPI) PET imaging in pancreatic cancer; fibroblast activation protein inhibitor (FAPI) PET imaging in colorectal cancer; fibroblast activation protein inhibitor (FAPI) cardiac imaging; fibroblast activation protein inhibitor (FAPI) PET/CT in gastric cancer; and more.  Provides in-depth clinical reviews on fibroblast activation protein imaging, offering actionable insights for clinical practice.  Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.