Calibrating Hubble Space Telescope is the proceedings from the first HST Calibration Workshop that was held at the Space Telescope Science Institute November 15-17, 1993. ... There is also a general section that includes papers on the Optical Telescope Assembly, the HST Calibration Database and information on the calibration of other space observatories namely, the IUE and the Hopkins Ultraviolet Telescope. Paper copies are no longer available! ...