Part I. Setting the Scene: 1. Good faith in European contract law: surveying the legal landscape Simon Whittaker and Reinhard Zimmermann; 2. Bona fides in roman contract law Martin Josef Schermaier; 3. Good faith in contract law in the medieval IUS commune James Gordley; 4. The conceptualization of good faith in American contract law: a general account Robert S. Summers; Part II. The Case Studies: Case 1: Courgettes perishing: Discussions: editors' comparative observations; Case 2: Degas drawing: Discussions: editors' comparative observations; Case 3: Breaking off negotiations: Discussions: editors' comparative observations; Case 4. Formalities I: Discussions: editors' comparative observations; Case 5: Formalities II: Discussions: editors' comparative observations; Case 6. One bag too few: Discussions: Editors' comparative observations; Case 7: Late payment of rent: Discussions: editors' comparative observations; Case 8: Delivery at night: Discussions: editors' comparative observations; Case 9: Uniformity of outfit: Discussions: Editors' comparative observations; Case 10: Dissolution of partnership: Discussions: editors' comparative observations; Case 11: Untested motors working Discussions: editors' comparative observations; Case 12: No use for borrowed motorbike: Discussions: editors' comparative observations; Case 13: Inspecting the books: Discussions: editors' comparative observations; Case 14: Producing new bumpers: Discussions: editors' comparative observations; Case 15: Two cracks in a shed: Discussions: editors' comparative observations; Case 16: Drug causing drowsiness in driving: Discussions: editors' comparative observations; Case 17: Bank miscrediting customer: Discussions: editors' comparative observations; Case 18: Access to medical records: Discussions: editors' comparative observations; Case 19: Doctors swapping practice: Discussions: editors' comparative observations; Case 20: Prescription I: Discussions: Editors' comparative observations; Case 21: Prescription II: Discussions: Editors' comparative observations; Case 22: Sitting on one's rights: Discussions: editors' comparative observations; Case 23: Long term business relationships I: Discussions: editors' comparative observations; Case 24: Long term business relationships II: Discussions: editors' comparative observations; Case 25: Effect of inflation: Discussions: Editors' comparative observations; Case 26: 'Sale' of soccer player: Discussions: editors' comparative observations; Case 27: Disability insurance: Discussions: editors' comparative observations; Case 28: Crop destroyed by hail; Case 29: Divorce settlement: Discussions: editors' comparative observations; Case 30: Penalty for late delivery: Discussions: editors' comparative observations; Coming to terms with good faith Simon Whittaker and Reinhard Zimmermann.