This document discusses the importance of using connectors or linkers in writing. Connectors are words or phrases that connect ideas in a paragraph and help the reader follow the writer's train of thought, creating good coherence. There are different types of connectors - coordinating conjunctions, subordinating conjunctions, prepositions, and transitional devices - that serve different grammatical functions and show different relationships between ideas like contrast, similarity, cause/effect and more. It is important to choose the right connector based on the grammatical structure and relationship between the two ideas being connected.