"The Sosa Model," the most recent book penned by Fabio Valenzuela Sosa, MD, reflects the author's multifaceted professional profile. Fabio uses his solid physics background to propose a new paradigm for determination of the doses used during radiosurgical procedures that are today's gold standard for the management of many partially resected intracranial tumors and of many others not amenable to surgical resection. Fabio formulates his model using a language devoid of unnecessary technical terminology; this stylistic approach allows him to make the radiosurgical concepts accessible to readers...