This document provides an overview of trademarks, including what constitutes a trademark, the different types of trademarks, selecting and registering a trademark, developing a brand, and resolving trademark conflicts. Key points include: trademarks identify the source of goods/services and distinguish them from others; the strength of a trademark impacts the scope of protection; selecting a unique, arbitrary or fanciful mark reduces the likelihood of confusion; developing proper trademark usage guidelines and consistently enforcing use strengthens a brand; registration provides ownership rights but use in commerce also builds rights.