As of my last update, there isn't a widely recognized author named L. R. Friedman that I can provide a biography for. It is possible that L. R. Friedman may be an emerging or lesser-known author, an academic, or the name could be associated with a professional from a different field who may have authored papers or reports in their area of expertise. Without specific context or additional information on L. R. Friedman’s work or prominence in a particular field, I'm unable to produce a detailed description. If L. R. Friedman has gained recognition after my last update, I would recommend checking the most recent available biographical sources or the author's publications for an up-to-date description.