Karl Popper described Die Beiden Grundrpobleme der Erkenntnistheorie.

Colloquial Irish 2 is the ideal way to refresh your knowledge of the language and to extend your skills from the beginner level to advanced beginner.

This accessible book examines key psychological ideas in relation to contemporary politics. This is the ideal introductory resource for students on a range of courses who are exploring politics in relation to psychology, as well as general readers interested in this topic.

Previously published: London: Methuen, 1975.

This course teaches Catalan, as spoken in north-eastern Spain today.

This third edition of the popular Japanese course for beginners has been completely rewritten to make learning the language easier and more enjoyable than ever before.

This third edition of Colloquial Czech has been revised and updated to make learning Czech easier and more enjoyable than ever before.

This new edition of Colloquial Arabic of the Gulf has been revised and updated to make learning this variety of Arabic easier and more enjoyable than ever before.

Specially written by experienced teachers for self-study or class use, the course offers you a step-by-step approach to written and spoken Malay. No prior knowledge of the language is required.