Speak from Day One
Break through the silence barrier
Build confidence speaking from your very first lesson.
Live Online Recorded (On-Demand)
From $139 View Course
Back to Faculty 
David Chen
CELTA, MBA in Technology
- Professional English
- Business English
- Speaking
9 years of teaching
About David Chen
David combines English expertise with business and tech industry knowledge. He teaches business English to tech professionals globally.
Programs & Courses Taught
Wisenford Speaking
Build Fluency & Confidence
Explore Program Wisenford Specialized
English for Every Path
Explore Program
American Culture & Idioms
Understand the references, speak like a native
Understand American cultural references and master native expressions.
Live Online In Person Recorded (On-Demand)
From $119 View Course
Think in English: Brain Building
Immersion methodology, natural fluency
Train your brain to think directly in English for natural fluency.
Live Online In Person Recorded (On-Demand)
From $139 View Course
Think in English 2: AI-Powered Mastery
Brain building with AI conversation partner
Advanced brain-building with AI-powered immersion methodology.
Live Online Recorded (On-Demand)
From $99 View Course
Wisenford Professional
Advance Your Career
Explore Program
Professional Writing Pro
Emails, reports, proposals that get results
Write professional emails, reports, and proposals that drive results.
Live Online In Person Recorded (On-Demand)
From $179 View Course
Customer Service Excellence
Turn interactions into loyalty
Master customer service English to build loyalty and satisfaction.
Live Online Recorded (On-Demand)
From $199 View Course
Workplace Communication: Speak Up
Find your voice in every meeting
Build assertiveness and find your voice in workplace communications.
Live Online Recorded (On-Demand)
From $219 View Course