This is a book that goes beyond technical specifications of Tiger tank (family) and also beyond their tactical use. It covers their deployment in battalion units, doctrine, actual use, effectiveness..... Each after action report provides kill ratios and ratios of destroyed tanks on both sides that includes tigers that were abandoned/destroyed by their crews.
Excellent overview of how heavy Tiger battalions were deployed, (ab)used and what they achieved. Book balances their advantages (protection, firepower) with their disadvantages (mobility, reliability, problems with recovery) to give us broader look into their use.
Highly recommended for people who want to know not only how each commander used his own Tiger but also how these battalions operated.