This chapter presents conclusions for Chapters 2–30, organized into five sections: (i) borehole distributed acoustic sensing (DAS) instrumentation and modeling, (ii) borehole DAS acquisition and processing, (iii) borehole DAS imaging and inversion, (iv) borehole DAS monitoring, and (v) further reading and future efforts. Although we strive to cover various aspects of borehole DAS geophysical applications, this may not be exhaustive due to the rapid advancements in borehole DAS technology and applications. Therefore, we recommend additional literature for further reading to supplement this monograph. We also discuss future endeavors for DAS technology developments and borehole DAS geophysical applications.