This chapter explains the common objectives and planning aspects of a microseismic survey. We will see how the information gathered from the available and already completed projects can be useful in the pre-survey design modeling. Moreover, we will discuss the role of full-waveform modeling and ray tracing tools in the evaluation of event detectability and in the optimization of receiver placement for effective frac monitoring. Finally, the field acquisition of microseismic data and list of key deliverables will be discussed.