The founders of Lexical Lab are Hugh Dellar and Andrew Walkley. We first met at University of Westminster, London in 1997 and have worked closely as teachers, trainers and materials writers ever since. We have written two five-level General English coursebook series for National Geographic Learning: Innovations and Outcomes, as well as an online teacher development course called Teaching Lexically. In addition, we are also currently working on a methodology book with DELTA publishing.

At Westminster, we developed and delivered a number of teacher training and development courses as well as courses for learners in spoken English, British culture, academic English, presentations and pronunciation, and colloquial English. We also designed and wrote tailored language courses for special groups such as hotel workers.

As speakers and trainers, we have conducted plenary presentations, talks, workshops and short courses in over 40 countries in Europe, Asia, the Middle East and South America.