evelin.

Guides

Practical articles on every skill this program covers. Free to read, written to actually help.

Chain of thought prompting: how to get reliable stepwise AI reasoning

Learn how to ask AI for stepwise reasoning so you get clearer answers, catch mistakes faster and solve complex tasks more reliably.

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How to write clear AI instructions that get the result you want

Learn how to give AI concise, unambiguous instructions so it understands your task and produces useful results for real everyday problems.

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Context windows and token limits: why AI responses get cut off

Learn how context windows and token limits work so you avoid cut off answers, missing details and broken workflows when using AI models.

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Why LLM evaluation with clear test cases matters

Learn how simple, well chosen test cases help you judge LLM answers, avoid surprises and steadily improve your prompts in real everyday tasks.

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Few-shot prompting with examples: how to guide AI output

Learn how to steer AI tools with a few concrete examples. Use few-shot prompting to get more reliable, on-style answers for your real tasks.

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Foundations of prompt engineering for better everyday AI results

Learn core LLM concepts, prompt patterns, testing, and safety so your everyday AI prompts become clearer, more reliable, and easier to reuse.

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Hallucination mitigation strategies for safer AI prompts

Learn simple prompt and workflow habits that cut AI hallucinations, so your outputs stay closer to real, checkable facts.

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LLM failure modes explained and how to spot common problems

Learn to recognize LLM failure modes like hallucinations, prompt injection and instruction drift so your AI outputs stay safe and reliable.

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How to use LLMs in your workflow and plan an AI career

Learn how to plug LLMs into your daily work, avoid common traps and turn growing prompt skills into real career options.

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Mental model of LLMs: how they think and why they err

Build a simple mental model of how LLMs behave so their odd answers feel predictable and you can design prompts that work reliably.

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How to specify AI output format for clean, usable results

Learn how to ask AI for bullet lists, tables or JSON so outputs are structured, consistent and ready to paste into your real everyday workflows.

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How probabilistic text generation in LLMs really works

Learn how large language models predict the next token from probabilities, why this causes mistakes, and how to write prompts that work with it.

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Prompt as input specification: how to tell an AI exactly what you need

Learn to treat prompts as clear input specifications, so AI tools follow your task, constraints and context with fewer mistakes.

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Prompt injection and guardrails: how to keep AI outputs safe

Learn what prompt injection is, why it is risky for real data and workflows, and how to design simple guardrails that block common attacks.

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Prompt iteration and refinement: how to improve AI prompts fast

Learn a simple loop to test, tweak and refine your AI prompts so outputs get clearer, more accurate and more useful with each try.

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How to turn good AI prompts into reusable templates

Learn how to turn one good AI prompt into a simple template with variables you can reuse in minutes for work, study and daily tasks.

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How to build simple prompt testing workflows that actually work

Learn how to test AI prompts on small, realistic case sets so you can trust results, fix weak spots fast and avoid hidden failures.

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Role conditioning in prompts: how to set the right expert voice

Learn how to use role statements in prompts so AI answers like a specific expert, teacher or assistant that fits your real-world task.

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Temperature and randomness in AI: how to get stable or creative replies

Learn how temperature and related settings shape AI output: more creativity or more reliability, and how to tune them for everyday tasks.

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Tokenization basics: how LLMs count text and why it matters

Learn how text is split into tokens, how models count them, and how this affects costs, limits and the quality of your prompts.

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