An advanced logging-while-drilling (LWD) tool has been introduced that combines laterolog-type resistivity measurements, high-resolution resistivity imaging and an "at-bit" resistivity indicator in a compact collar length of 11-13 ft. The laterolog measurements are compensated by using two opposed transmitters and correspond to diameter of investigations of 12 to 30 in. These measurements are presented as calibrated resistivity images with resolution limits of 0.5-1 in., depending on sensor aperture size and environment. The full-imaging approach to resistivity logging is particularly well suited for exploratory and appraisal drilling in high-angle and horizontal wells, where beddings with high relative dip angles are prevalent. In these situations, the petrophysical interpretation and reserve computation based on non-imaging, i. e. circumferentially averaging, resistivity measurements require extensive corrections due to bed boundary effects. These corrections in turn are typically based on dip angle estimates from borehole images. An integrated approach to laterolog resistivity measurements and resistivity images offers an exacter approach to these problems. The tool's petrophysical relevance is further enhanced by providing near-equivalent measurements in 4-3/4 in. and 6-3/4 in. collar diameters. In both tool versions, nine current-sensing electrodes are arranged in a redundant scheme, providing simultaneous laterolog and imaging data. Transmitters and receivers form multiple pairs with spacings of 10 in., 30 in. and 50 in. In addition to these sensors, the electrical current on the collar towards the bit is monitored; this measurement being particularly significant in real-time geosteering applications. The paper presents the principles of operation of these tools, their key design parameters and the tool and environmental parameters that influence log responses. LWD log examples from vertical and highly deviated boreholes are discussed and compared to wireline electrical imaging logs. Further topics include the calculation and the visualization of complex resistivity profiles and the standard compensation and environmental correction procedures. The achievable image resolution is discussed as well as the environmental parameters that impact detection and resolution limits.