Business
When a Great Product Gets Killed by Terrible Service
A flawless deliverable means nothing if your client spent weeks anxious, ignored, and chasing you for updates. They're not just paying for results—they're paying for peace of mind.
Aleksandr Kosenko
Product Manager, AI Builder, Lifelong Learner
Getting Clients
What is Product Marketing
Discover the essence of product marketing through practical insights and real examples. Learn how to identify your target audience, craft compelling messages, and create products that resonate, ensuring success in a competitive marketplace.
Product management
Task trackers aren't for everyone
Tasks pile up, go stale, and haunt your to-do list forever. What if they just… disappeared on their own?
Writing That Sells
What Every Publisher Needs to Know
Most readers skim and bounce. Learn the three-stage system to hook attention, hold it, and drive action.
Claude Code
How I Tested the Cross‑Lingual Hints Hypothesis for Expat Mode
Unlock the secrets of efficient language learning! Discover how a cross-lingual hints system can speed up your Spanish skills while living in Spain. Learn the surprising findings from real textbook analysis and how AI tools streamline the process
Claude Code
Expat Mode: how I update my language‑learning bot in a state of total uncertainty
Explore how I developed a Telegram bot to enhance my language learning journey amid uncertainty. Discover the innovative "Expat Mode," designed to balance learning between English and Spanish, automating decisions to keep progress steady and engaging.
Claude Code
Control over “Magic Prompts”: Practical Techniques and Lessons from the Day
Explore practical techniques for harnessing AI with "Magic Prompts." Discover how to control AI responses, ensure quality, and use multi-model strategies for improved outcomes. Learn to create effective backups and solidify your development process!
Claude Code
Apples, Not Pineapples: Making Vacancy‑First Real with Triple Validation
Discover the power of "vacancy-first" with triple validation! This approach ensures that only the most relevant skills (or "apples") are presented, eliminating distractions (like "pineapples") and streamlining your job application process for success.
Claude Code
Resume as a database: an AI‑assisted experiment
Transform your job search! Discover how to turn your resume into a database with AI for tailored applications and impactful cover letters.
Sales through a Personal Blog
Advertising Message When Selling Through a Personal Blog
Learn to craft compelling advertising messages on your personal blog to boost sales, connect with readers, and enhance your selling skills!
Sales through a Personal Blog
Sales Fundamentals
Unlock the essentials of sales! Learn the four key components that drive effective selling and how to connect with your audience.
Sales through a Personal Blog
Main skills of selling through personal blogging
Unlock the secrets of selling through personal blogging! Learn essential skills in community building and sales techniques to boost your success.