Learn
from an engineer who ships it.
I'm Sepand Asadi, Engineering Lead at PlayStation. Zero to Front End Hero teaches the front end the way production teams build it, and CodeQuest teaches kids to think like programmers.
Many tutorialstoo little depth
Most learning paths stop at syntax. Mine treat the front end as real engineering: accessibility, architecture, performance, testing and security, taught the way production teams actually work.
So I wrote the path I wish I'd had.
Zero to Front End Hero
A four-volume series taking you from your first HTML tag to full-stack professional.
- Book series
- 52 chapters
- Amazon
CodeQuest
Computer science for kids through games, puzzles and story. Ages 7+ without code, then 12+ with JavaScript.
- Kids CS
- 18 badges
- 6 worlds
BuildoBox
Real estate analysis for flips and rentals, with AI-assisted insights, comps and financial modeling.
- PropTech
- App Store
- Mac
Mentoring
Hundreds of engineers mentored. Advisory board member, UC Irvine Customer Experience Program.
- Leadership
- UCI
UCI Advisory Board
From your first HTML tagto your first production deploy.
Zero to Front End Hero covers semantic HTML through security, CI/CD and AI-assisted development, drawn from years of production work at PlayStation.
Zero to Front End Hero
Four volumes, from semantic HTML to Docker, CI/CD and AI-assisted development. Every chapter ships with exercises.
Read Volume 1 ↗The series in numbers
52
chapters
1,300+
pages
390+
exercises
55+
quizzes
Hint: click the glowing keys
The UI Architect. HTML and CSS foundations with accessibility and modern layouts. 16 chapters.
What I bring to a team
Leadership, systems and teaching, practiced at PlayStation and written down in the books.
Engineering leadership
I lead teams across the stack, from frontend architecture to the services and APIs behind it, with a focus on performance, reliability and long-term maintainability.
- End-to-end system design
- Performance and reliability
- Raising the frontend bar
One path, from age 7 to staff engineer
Every book picks up where the last one ends. Each step is real, in order.
Play, Think, SolveCodeQuest 1 · Ages 7+● No code yetAlgorithms, loops and debugging through games and puzzles.
Build, Design, CodeCodeQuest 2 · Coming soon · Ages 12+● Pseudocode → JSVariables, conditions and events, ending in four real projects.- The UI ArchitectVol 1 · 16 ch● HTML & CSSSemantic HTML, modern CSS, Flexbox, Grid and WCAG.
- The JavaScript DeveloperVol 2 · 22 ch● DOM & asyncThe language, the DOM, events, async code and APIs.
- Modern MasteryVol 3 · 10 ch● FrameworksReact and Vue, state, CSS at scale, testing and performance.
- The Full-Stack ProfessionalVol 4 · 8 ch● Ship itSecurity, CI/CD, Node, Docker, cloud and AI.Get the series
What readers and users say
Five-star reviews from readers of the series and from BuildoBox users on the App Store.
A clear, practical roadmap
Book reviewThis book is a clear, practical roadmap for anyone who wants to break into front-end development without feeling overwhelmed. Zero to Front End Hero explains concepts step by step, in plain language, and focuses on real skills you can actually use, not just theory. What stands out is how motivating it is. It makes learning feel achievable, even if you are starting from absolutely zero. The structure is logical, the examples are easy to follow, and the progression builds real confidence. This is the kind of guide that turns curiosity into action and action into competence. Highly recommended for beginners, career changers, and anyone who wants a solid foundation in front-end development.
One of the most practical property analysis tools for real estate investors
App Store · BuildoBoxThe app makes property analysis simple, organized, and efficient by bringing key numbers like rehab costs, ROI, cash flow, and projections into one easy-to-use workspace. … I especially like how practical the platform feels; it is clearly designed around real investor needs.
Super helpful for home investment insights
App Store · BuildoBoxInstead of spending hours researching renovation costs or trying to figure out whether a property is a good investment, the app just asks a few simple questions and then gives you a full analysis. I like that it takes something that can feel overwhelming and makes it much easier to understand.
A complete game-changer for property analysis
App Store · BuildoBoxIf you're still analyzing deals manually, download this app immediately. It completely streamlines the underwriting process, giving you instant clarity on ROI and projections in a fraction of the time. The interface is modern, lightning-fast, and highly intuitive.
Game changer for real estate investing
App Store · BuildoBoxThe app is super clean, fast, and beginner-friendly, but still powerful enough for experienced investors. I love how everything from rehab costs to cash flow and ROI is organized in one place without needing messy spreadsheets.
Excellent tool for real estate task tracking
App Store · BuildoBoxBuildoBox makes it easy to analyze, track, and manage property investments all in one place. The interface is clean, user-friendly, and very intuitive even for beginners.
Super easy real estate investing app
App Store · BuildoBoxSuper clean, easy to use, and much faster than managing spreadsheets. It makes flip and rental analysis simple with clear numbers, rehab estimates, and cash flow tracking all in one place.
Very useful app with a smart and creative idea behind it
App Store · BuildoBoxThe platform is easy to use, well designed, and makes property investment feel much more accessible. Great experience overall.
Building a team, or working through the books?
Get in touch about engineering leadership, mentoring, or questions about the series.
contact@sepandasadi.com