This unique compendium focuses on the use and applications of the state-of-the-art exploratory data analysis and statistical methods to understand the concept of stationarity and assessment based on hydroclimatic data. Stationarity assessment is the key for hydrologic design, particularly in the context of changing climate.The comprehensive text presents a thorough discussion of the parametric, unit root and non-parametric methods adopted for stationarity assessment with their vivid practical examples, issues and implications.This useful reference manual benefits researchers, professionals, academics and graduate students in the fields of hydrology, climate change and climatology.