From: Lionel Smith <lionel.smith@law.ox.ac.uk>

Sent: Monday 26 January 2026 09:07

To: ODG

Subject: Alexander Schall, The Principle of Unjust Enrichment

With apologies for cross-posting, I send congratulations to Alexander Schall of Leuphana University Lüneburg on the publication of The Principle of Unjust Enrichment (de Gruyter, 2025). This book is open access, and free to download from that link.

From the web site:

The principle of unjust enrichment came into fruition under English law in the last decade. It is now accepted that the four-stage-test "enrichment", "at the expense", "unjust factor" and "no defences" triggers remedies in restitution. Unjust enrichment resembles Civilian unjustified enrichment in many ways. But it also differs considerably in others, just as do French and German unjustified enrichment. The book aims to explain this.

Bravo Alexander!

Lionel