Lisa lays out a practical, no-soft-edges guide to boundaries—what they are, why they matter, and how to enforce them without guilt. She reframes boundaries as clarity (not cruelty), arguing that resentment is often the signal of an unspoken limit. Moving through key categories—home boundaries, possessions, emotional labor, time and availability, physical boundaries, and digital access—she gives real-world scripts and examples, including a sharp story about a friend entering her house despite being told she and her husband were having private time. The takeaway is blunt: boundaries reveal where you still people-please, confuse love with access, or avoid conflict—and real respect shows up when people honor your standards without argument.