An influential text that is borderline schizophrenic in some of its readings and claims. Was a part of the foundation for a theologically incorrect, almost cult-like school of Protestant thought that has been used to justify Zionism, American intervention and forever wars in the Middle East, and countless atrocities committed by Israel against their neighbors. The damage that dispensationalism has done to not only Protestantism but the globe as a whole probably can't be overstated.
While Larkin does draw upon/reference the Bible often in this work, it's ultimately his opinion of how complex biblical prophecies should be interpreted. This study consists of Larkin pointing to specific passages and saying, "this is what this means," without any real justification or explanation of how he arrived at these conclusions. Larkin decides at whim what should be interpreted symbolically and what should be interpreted literally.
Like dispensationalists as a whole, Larkin approaches the Bible from an inherently incorrect position, reading Zionism into scripture by misinterpreting Abrahamic promises and Paul/Christ's teachings on Israel (Matthew 3, Romans 11, Ephesians 2) instead of interpreting these passages in their very clear and obvious meaning. That meaning is that non-believing Jews have been severed from the branch, and Christ-followers have been grafted on. This glaring, baffling misunderstanding of scripture undermines Larkin's entire interpretation of Revelation. Other aspects of this study, such as the propagation of the belief that Christians will be raptured up prior to the end times, or that one can break Revelation down into neat little periods or date ranges, aren't so dangerous but don't have much scriptural backing.