David Grove and Cei Davies Linn’s partnership spanned three decades during which time they developed the theories of Clean Language. Together they travelled extensively, training and working clinically. Eventually, on the advice of R.D. Laing with whom they occasionally presented, the husband and wife team ran a Seminar and Retreat Centre in Mid-Missouri. Cei continues to extend the phenomenology of practice, works clinically, and conducts training seminars for clinicians and coaches.