Nd:glass lasers have been developed to a high degree of performance and reliability. At the Lawrence Livermore Laboratory this development started very early with the long path laser, progressed to the new operating Shiva laser, and reached the present state of the art with the Nova laser design. Laser power has increased from 0.04 TW on early lasers to > 20 TW on Shiva, to a projected > 300 TW performance on Nova. Energy has similarily increased from ~0.07 kJ on early lasers, to > 10 kJ on Shiva, and > 300 kJ projected on Nova. The techniques developed to support this technical progress are summarized in this talk. A great deal of this work is not specific to Nd:glass lasers and is useful to all workers concerned with fusion lasers. In the spirit of this conference, emphasis will be placed on issues of propagation, optical quality, damage, and laser architecture.