Explore the fundamentals of building applications with Large Language Models (LLMs) and LangChain in this 20-minute tutorial video. Learn about LLMs and Prompt Templates, including their inability to store state and the importance of prompts in application development. Discover the concept of few-shot prompting and how to implement Prompt Templates in code. Follow along with practical demonstrations on setting up an LLM, creating PromptTemplates, and constructing an LLM Chain. Gain hands-on experience using a provided Colab Code Notebook to reinforce your understanding of these essential concepts in LangChain development.