The English Progress blog
Evidence-based methods to build an English vocabulary that lasts.
How many English words do you need to be fluent?
1,000 words cover 85% of everyday speech. The research on vocabulary size, and where to focus first.
Spaced repetition: how to memorize English words for good
Why you forget 70% of new words within a day, and how well-timed reviews turn that into lasting memory.
English vocabulary for work: what to learn first
Emails, meetings, small talk: a practical plan to build the professional English vocabulary you need on the job.