This chapter is introducing basic usage of ViewWave. A sample dataset that is used in this chapter can be obtained at the following page. Please download vw_sample.zip and extract files to some place if necessary. http://smo.kenken.go.jp/~kashima/viewwave/download Starting/Terminating ViewWave Displaying velocity and displacement waveforms Displaying Fourier spectrum Displaying response spectra Displaying particle orbit Displaying Fourier spectrum ratio Copying and pasting graphs Book traversal links for Basic Usage Readable data files Up Starting/Terminating ViewWave