Book review: A Worthwhile Investment: Review of ICSID Rules and Regulations 2022: Article-by-Article Commentary, by Happ and Wilske - Journal of International Arbitration View Book review: A Worthwhile Investment: Review of ICSID Rules and Regulations 2022: Article-by-Article Commentary, by Happ and Wilske by - Journal of International Arbitration Book review: A Worthwhile Investment: Review of ICSID Rules and Regulations 2022: Article-by-Article Commentary, by Happ and Wilske 41 6 Journal of International Arbitration