Claude AI Masterclass: Claude Code, Cowork, Skills [2026]

Most people use Claude AI like a search box. They type a question, copy the answer, and close the tab. Meanwhile the weekly Excel report still gets rebuilt by hand, the ledger still doesn't match, and the raw footage from last Tuesday is still sitting in a folder.

This course is about the other way to use Claude: handing it the actual work and checking what comes back. Every section takes one kind of job, runs it start to finish on screen, and shows you what I typed, what Claude produced, where it went wrong and how I fixed it.

It covers Claude Chat, Claude Skills, Connectors, Claude in Excel, Claude Design, the Claude desktop app with Cowork, and Claude Code. You won't find a tour of every menu here. You'll find around 20 hours of real tasks, grouped by the kind of work you already do, so you can jump straight to your own field.

Here is what you'll work through.

Claude Chat on the free plan. You'll set your preferences so Claude answers the way you work, use it to prepare for exams with dynamic questionnaires, practise interviews inside a Claude Project using voice mode, and build two artifacts: an interactive dashboard and a quiz you can share with anyone through a link. You'll also teach Claude to write captions in your style by feeding it examples that already worked.

Claude Skills. This is where repetitive work stops being repetitive. You'll turn a report-building chat into a Skill, import and edit Skills, record a Skill, and use the ones Anthropic and other people publish. You'll open a SKILL md file and read it before importing anything, because you should know what you're asking Claude to run. The section ends with a plain answer to a question most people get wrong: when to use a Skill, a prompt or a Project.

Connectors. You'll reach files on your computer from the web and mobile apps, draft and send email through Gmail, plan an event with context from Slack and Google Drive, use an in-chat connector like TripAdvisor, take actions on websites with Claude in Chrome, and work with Google Sheets, Notion, Google Slides and Gamma.

Claude for analytics in Excel. The longest section in the course. You'll install Claude in Excel and work a marketing analytics project from a simple business question to a polished dashboard. Along the way you'll fix bad formatting and wrong values, build metrics and helper columns, join several files into a small data model, build positive and negative bar charts, calculate conversions, and catch data quality problems before they reach a chart. You'll also ask Claude business-critical questions and judge whether its answers hold up. A customer analytics use case and an answer file for the exercises are included. A separate section covers generating synthetic data and building dynamic reports from more than 50 files.

Claude for finance and accounting. You'll build a chart of accounts, create a ledger and clear the suspense account, reconcile data downloaded from government tax filing portals (shown with India's GST and ITR filings), set up a vendor onboarding process, build an accounts receivable system, and produce financial statements and CFO-style reports. The point is output you can inspect line by line, not numbers you have to take on trust.

Claude for presentations. You'll design a single slide in Claude Design, then build a pitch deck across a two-part workflow.

Claude for product managers. You'll set up a Claude Project with memory for a new product, form a problem statement with the Double Diamond framework, shape the product vision with a power-interest grid, CATWOE and MoSCoW, write a project brief with assumption-evidence mapping, set success metrics with the HEART framework, use screenshots as input for UX improvements, and build personas backed by evidence.

Claude for video editors. Two sections here. In the first you build a reusable editing system with Claude: a numerical graphics system, creative assets, a sound effects system, labels, trend graphics, timeline animations, a masked text layer and an audio mix, fixing bugs and updating the Skill as you go. In the second you edit with the Claude desktop app alone: raw footage to a final cut in 45 minutes, adding graphics, resizing for other formats, handling an hour-long video, adding motion graphics, and generating sound effects and background music in-house.

Claude Code for non-developers. You'll build a LinkedIn post scheduler with Claude Code and then test it properly, without writing the code yourself.

How it's taught. Each lecture is one task done on screen at a normal working pace. When Claude gets something wrong, the mistake stays in the video along with the fix, because that's the part you'll need on your own work. Where a section uses data, the files are included so you can follow along.

Who it's for. Analysts, marketers, finance and accounting staff, product managers, designers, presenters and video editors who already have real work on their desk and want Claude to take a share of it. It also suits non-programmers who want a first, practical look at Claude Code.

Who it isn't for. This isn't an introduction to artificial intelligence, and it isn't a software engineering course. If you want API work, model theory or advanced agent architecture, look elsewhere.

What you need. A Claude account (the free plan covers the Chat section; Skills and everything after it need a paid plan), Microsoft Excel for the analytics and finance sections, and basic comfort with files and spreadsheets. No coding.

About me. I'm KD. I've worked with data for more than 13 years, I teach data analytics and AI courses, and I run KultureHire, an education company in India that helps freshers get job-ready through job simulations. I teach the way I work: do the task on screen, say why I'm doing each step, and show what happens when things don't go to plan.

The preview lectures are open, so you can watch a few and decide whether this way of working fits you. Pick a task you repeat every week and bring it with you.