The Elements of Operator Theory{\it Elements of Operatory Theory} is largely self contained and geared towards graduate students, mathematicians and scientists who need to apply operator theory to their field. Written in a user friendly, motivating style, fundamental topics are presented systematically, i. e, set theory, algebraic structures, topological structures, Banach spaces, Hilbert Spaces, culminating with the Spectral Theorem. The exposition is concept driven and avoids the