An enjoyable, comic-style book on the most successful set of ideas ever devised by human beings. Quantum theory confronts us with bizarre paradoxes which contradict the logic of classical physics. At the sub-atomic level, one particle seems to know what the others are doing, and according to Heisenberg's 'uncertainty principle', there is a limit to how accurately nature can be observed. And yet the theory is amazingly accurate and widely applied, explaining all of chemistry and most of physics. Introducing Quantum Theory takes us on a step-by-step tour with the key figures, including Planck, Einstein, Bohr, Heisenberg and Schr dinger. Each contributed at least one crucial concept to the theory. The puzzle of the wave-particle duality is here, along with descriptions of the two questions raised against Bohr's 'Copenhagen Interpretation' - the famous 'dead and alive cat' and the EPR paradox. Both remain unresolved. AUTHOR: J. P. McEvoy is a former research scientist and now a science journalist.