Reading in English can be categorized into three main types: intensive reading, extensive reading, and scanning. Intensive reading involves a detailed analysis of a text, focusing on understanding every word and sentence. Extensive reading, on the other hand, involves reading larger amounts of text for overall understanding without necessarily analyzing every word. Scanning is a quick reading technique used to locate specific information in a text. Each type of reading serves a different purpose and can be used in various situations to improve English language skills.