  The covariant quantization and light cone quantization formalisms are
followed to construct the coherent states of both open and closed bosonic
strings. We make a systematic and straightforward use of the original
definition of coherent states of harmonic oscillators to establish the coherent
and their corresponding cat states. We analyze the statistics of these states
by explicitly calculating the Mandel parameter and obtained interesting results
about the nature of distribution of the states. A tachyonic state with
imaginary mass and the positive norm is obtained.
