Which nonfiction genre teaches the reader a process

1. History
2. Biography
3. How-to
4. Humor

The nonfiction genre that teaches the reader a process is the "How-to" genre. How-to books provide step-by-step instructions on how to accomplish a particular task or learn a new skill. These books are designed to guide the reader through a specific process, whether it's learning a new hobby, cooking a meal, fixing something, or mastering a particular technique. They provide detailed explanations, tips, and often include illustrations or diagrams to help the reader understand and follow the process. To find a how-to book, you can search for specific topics on online booksellers, visit your local library, or browse through sections dedicated to self-help or instructional books in bookstores.