Perfect Materia Medica of Mind by Yogesh Sehgal, Sanjay Sehgal and Preeti Sehgal, was published in 1998. The Sehgals have taken Mind rubrics from the Synthetic Repertory and grouped them by remedy, separated them into singular symptoms-termed Alone and common symptoms; termed with others. The additions come from Synthesis and Murphy as well as Sehgal's own work. The cross-references and variations in additions of medicines are given in each remedy list. Some interpretations of the rubrics themselves, as developed by Sehgal, are also included. Sehgal's method of extending our understanding of what the rubrics mean is exemplified here. Though his introduction discusses his approach it does not lay the full foundation. This is not the most suitable book for beginning homeopaths or those not already conversant with Sehgal's work.