Book excerpt: Dr. Culley Carson provides a state-of-the-art review of clinical issues surrounding erectile dysfunction. Top experts in the field, like Dr. Laurence Levine and Dr. Alan Seftel, contribute reviews on peyronie's disease and epidemiology and risk factors, respectively. A practical approach is given, with articles on doppler blood flow analysis, comparison of established agents with newer phosphodiesterase medications, penile rehabilitation after prostate cancer, and treatment of erectile dysfunction and depression.