As If an Enemy’s Country: The British Occupation of Boston and the Origins of the Revolution by Richard Archer
This book covers the period leading up to the Boston Massacre, beginning in the early 1760s. Most of the book discusses the Nonimportation Agreement that Boston merchants used to protest new taxes the British government tried to force on them, as well as popular protests against British-appointed officials and enforcers of tax laws.
These elements combined to make the British-appointed governor uneasy (he, along with many tax officials, escaped to the safety of Castle William to eat hot dogs…wait that last bit probably isn’t true). Soon Boston was overflowing with British soldiers that angered and harassed the population.
Archer argues that what started the Revolution was not the Boston Massacre, but the entry of troops into the town. That was the day Bostonians began to think of themselves as something other than British citizens. They were treated as less than British and began to identify as Americans under British occupation.