Significant applications of wavelet transforms in geoscience and biology have been elucidated in this book. Wavelet transforms are one of the most primary candidates in time-frequency transformations. These include application of wavelet transforms in the treatment of EEG signals, biometric recognition and validation, and dimensionality reduction of the gait identification framework. It also elucidates the applications of wavelet transforms in the study of data gathered from sports and breast cancer. The denoting process has been evaluated within the domain of wavelet transform and applied on data garnered from real world applications.