The 90-Day AI Mastery Challenge by Parikshit Khanna (2026): From Zero to AI Expert in One Hour a Day
BY PARIKSHIT KHANNA • PUBLISHED 1 NOVEMBER 2026
Disclosure: this is the author's own book, and the Amazon.in links are affiliate links. As an Amazon Associate I earn from qualifying purchases.

Quick answer
The 90-Day AI Mastery Challenge is a practical Kindle guide by corporate AI trainer Parikshit Khanna. It takes you from "I use ChatGPT sometimes" to building your own AI agents, automated workflows and AI powered business systems, in one focused hour a day over 13 weeks. It is written for students, finance professionals, HR teams, CEOs, CXOs, founders and small business owners who want results, not theory.
What is inside the book
Generative AI, agentic AI and autonomous AI explained in plain words.
A free, paid and pro tool map covering ChatGPT, Claude, Claude Code, Claude Cowork, Claude in Chrome, Gemini, Microsoft Copilot, Grok and Perplexity.
175 copy and paste prompts organised by role: students, finance, HR, CEOs and CXOs, marketing and automation.
Step by step recipes for AI in Excel, photos, videos, reports, presentations and websites.
How to build your own agents on every major platform: Custom GPTs, Gemini Gems, Copilot Studio, Claude Projects and Skills, Cowork, Claude Code and Grok.
Workflow and integration recipes with Zapier, Make, n8n and Power Automate.
Role playbooks with the three agents every student, finance, HR and CXO professional should build.
A complete case study: opening a cafe from zero with AI as your whole team.
A 13 week, day by day challenge with weekly checkpoints, a capstone project and an AI Expert checklist.

How the 90 days work
Each day asks for about one focused hour. Weekly checkpoints keep you honest, and the final weeks build towards a capstone project. By the end, readers have a portfolio that proves their skills: a live website, working agents, automated workflows and a capstone AI system.
Who should read it
Reader | What you get |
Students | Study, research and career prompts, plus a portfolio to show employers |
Finance professionals | Excel and reporting recipes and a finance agent to build |
HR teams | Hiring, onboarding and policy prompts and an HR agent playbook |
CEOs, CXOs and founders | Decision support, strategy prompts and a view of which tools are worth paying for |
Small business owners | The cafe case study and automation recipes you can copy |
Book details
Detail | Information |
Author | Parikshit Khanna |
Format | Kindle eBook |
Length | 76 pages (Amazon print length) |
Published | 31 October 2026 |
Language | English |
ASIN | B0HPY9FQBM |
Available on |
About the author
Parikshit Khanna is an AI trainer and the founder of Digital Training Jet, based in Greater Noida West, Delhi NCR. Digital Training Jet programmes have reached more than 3,50,000 professionals. He holds Anthropic Academy completion certificates for Claude 101, Claude Cowork, and AI Capabilities and Limitations, gave the TEDx talk "Redesigning Work with Artificial Intelligence" at TEDxEicher School Faridabad Youth on 1 August 2026, ran a Google Gemini workshop at IIT Guwahati in November 2025, and is visiting faculty at GL Bajaj Institute of Management and Research. He is also co author of Rejection to Redirection and Digital Black.

Learn with Parikshit Khanna
Claude and Copilot courses from 1 to 15 days for corporate teams, HNIs and colleges.
Free discovery call on Topmate and the 90 minute Claude AI Mastery session.
Prompt books and AI guides on Topmate, including the Claude Playbook and Copilot at Work.
WhatsApp: +91 99972 13177
Email: pkhanna123@gmail.com
Contact page: parikshitkhanna.com/contact
Frequently asked questions
Is the book suitable for complete beginners?
Yes. It starts from casual ChatGPT use and builds step by step to agents and automation.
Can I buy it outside India?
Yes. The Kindle edition is listed on Amazon.com and Amazon.co.uk as well as Amazon.in, using the same ASIN, B0HPY9FQBM.
Do I need paid AI tools to follow the challenge?
No. The book maps free, paid and pro tiers for each tool, so you can start free and upgrade only where it helps.
Can my company use the book with training?
Yes. Teams can pair the book with a live programme. See the Claude and Copilot course guide or message Parikshit on WhatsApp.
More books by Parikshit Khanna
Kailash Within

Eleven lessons from the Shiva Puran for staying calm when life feels overwhelming.
Buy: Amazon.in • Amazon.com • Amazon.co.uk
Shiva in the Storm

Fifteen stories of inner strength inspired by India's floods and earthquakes.
Buy: Amazon.in • Amazon.com • Amazon.co.uk
Damru of Creation

A Shiva Purana guide to finding peace in silence.
Buy: Amazon.in • Amazon.com • Amazon.co.uk
Shiva Saved Me

The story of a boy who chose light over revenge.
Buy: Amazon.in • Amazon.com • Amazon.co.uk
Somnath and the Moonless Crown

A time travel adventure through courage and faith.
Buy: Amazon.in • Amazon.com • Amazon.co.uk
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