Available to all asylum seekers, refugees and anyone else wanting to improve their English skills. The classes are being run by TEFL qualified volunteers. STOP PRESS Are you an ESOL TEFL qualified English tutor?.English Language Courses with Glasgow Libraries ESOL. Our classes are free of charge and are open to any adults in Glasgow for whom English is not their .Free English Classes. English Class_. Looking to improve your English conversation skills? Or just make some new friends in Glasgow and have fun .