Data analysis is crucial in getting the best outcome§from an astronomical observation. It is cheaper to§invest in data analysis than in new expensive§telescopes, space missions, and instrumentation.§That, of course is a false dilemma, but it is also§true that often not enough effort is paid to data§analysis compared to other disciplines.§§§This book tries to fill in this gap with showing a§series of a new data reduction algorithms and§observational techniques in Astronomy. Among them,§image deconvolution in wide-field images, new star§centering algorithms, and new CCD acquisition§techniques such as fast-drift scanning applied§to lunar occultations and speckle interferometry. Data analysis is crucial in getting the best outcome§from an astronomical observation. It is cheaper to§invest in data analysis than in new expensive§telescopes, space missions, and instrumentation.§That, of course is a false dilemma, but it is also§true that often not enough effort is paid to data§analysis compared to other disciplines.§This book tries to fill in this gap with showing a§series of a new data reduction algorithms and§observational techniques in Astronomy. Among them,§image deconvolution in wide-field images, new star§centering algorithms, and new CCD acquisition§techniques such as fast-drift scanning applied§to lunar occultations and speckle interferometry.