In this book are collected under one cover booklet Rav 4 Eider, in compact form setting out the various aspects of compliance with the laws of Passover in the era of modern technology:
1. The laws of chametz (leaven) and the requirements for food for Passover;
2. Preparation of the home, kitchen and kitchen equipment for the Passover;
3. The search for chametz, its extermination and sale;
4. Conducting Passover Seder.