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Koit Academy

AI Tools

AI tool guides for Claude, ChatGPT and Gemini

Seven guides, 1,077 pages, about the software itself. Here is what each one is for and the order most people should buy them in.

How these seven guides fit together

The entry point

The AI Starter Pack is $9 and covers all three models at a beginner level — six chapters each, then a cheat sheet for deciding which to open for a given job. It exists so you can find out which tool suits you before spending twenty dollars on the wrong deep guide.

The three tool guides

One book per model, each complete on its own.The Complete Guide to Claude is the longest in the catalogue at 288 pages and goes furthest past the chat box — Projects, Artifacts, Skills, Connectors and ten full workflows.Mastering ChatGPT starts at the sign-up screen and ends at custom GPTs.Mastering Gemini is the shortest, because it is written for someone who already uses another model and mainly needs to know what Gemini does differently: Deep Research, Canvas, Gems, and being wired into Gmail, Docs and Drive.

The cross-tool layer

Prompt Engineering Masterclass is the one to read second. Twenty chapters on the parts of a prompt that decide whether it works — context, roles, constraints, output format, few-shot examples, chain-of-thought and chaining longer jobs together. Only three chapters are model-specific, so it keeps its value when you switch tools or when the tools change under you.

Two specialists

Mastering AI Image Generation is a different craft to text prompting and gets its own 26 chapters across Midjourney, ChatGPT Images 2.0 and Nano Banana, including the parts nobody else writes down: licensing, disclosure and what gets an account terminated.200 AI Prompt Templates is not a course at all — it is a reference of 200 finished prompts across ten categories, numbered so you can find one again.

What these do not cover

They teach you to use the tools, not to build with them. There is no fine-tuning, no agent framework and no code beyond one chapter on the API for non-developers in the Claude guide. They also stop short of applying AI to a specific commercial job — publishing on a schedule, running a freelance business, spending an ad budget. That is deliberate, and it is what theDigital Marketing half of the library is for.

Side by side

What each one assumes you already know

GuidePagesBest forAssumes you already know
AI Starter Pack94Deciding which of the three tools to commit toNothing at all
The Complete Guide to Claude 2026288Making Claude the tool you run your week onYou have opened Claude once
Mastering ChatGPT154Going from first prompt to custom GPTsNothing — it starts at the sign-up screen
Mastering Gemini 2026117Getting value out of Gemini inside Google WorkspaceYou already use another model
Prompt Engineering Masterclass 2026110Writing prompts that work on any model, not oneYou have written prompts and been disappointed
Mastering AI Image Generation 2026139Midjourney, ChatGPT Images 2.0 and Nano BananaNothing about images; some patience with iteration
200 AI Prompt Templates175Never writing the same prompt from scratch twiceNothing — it is a reference, not a course

Choosing between them

Five questions worth answering first

Which one should I start with if I only use one AI?
Take the guide for the model you already pay for, or plan to. Each of the three tool guides is complete on its own and none of them assumes you have read the others. If you have not picked a model yet, the AI Starter Pack covers all three at a beginner level and ends with a comparison sheet — it is cheaper than guessing wrong.
Do I need all three tool guides?
Almost nobody does. The three models overlap heavily on the basics, and the guides deliberately repeat those basics so each can stand alone. Buy a second one when you actually start using a second model — usually because your employer standardised on it, or because one is wired into tools you already use.
Is the Prompt Engineering Masterclass worth it if I already have a tool guide?
It is the cross-tool layer. The tool guides teach one product; the Masterclass teaches the techniques that survive a model change — context, roles, constraints, few-shot, chain-of-thought, chaining. Three of its twenty chapters are model-specific, and the rest apply everywhere. Buy it second, not first.
What is the difference between the Masterclass and the 200 Templates?
Method versus artefact. The Masterclass explains why a prompt works so you can build your own; the template library hands you 200 finished ones, numbered P-001 to P-200, to fill in and run. The Masterclass also carries 150 templates of its own in its appendix, so if you only want one, start there.
Is image generation covered in the other guides?
Only in passing. Making Images is one chapter in the Gemini guide and one in the ChatGPT guide. Mastering AI Image Generation is a separate discipline — 26 chapters on Midjourney parameters, consistency across a campaign, licensing and the diagnostics table for when an image comes out wrong.

Also in the library

Know the tools already? The other half is about using them to sell something.

Three guides on AI-assisted marketing: content and social media, freelance and small-business operations, and Google Ads at agency scale.