This report summarises some of the new forms of image data and specialised interpretative techniques now available which can be selectively employed to provide more information than that previously gained from standard photo interpretation procedures.Proper use of these techniques require basic understanding of how the imagery is obtained, what it represents and its limitations with respect to spectral, spatial and brightness resolution, so that the best remote sensor data may be selected, processed and analysed for a particular problem to obtain the maximum amount of information with the least expense.