Are there recommendations for a (concise) introductory books for learning about the customs and rules of a christian life? For example, what principles to live by, what to eat and fast during special days in a year, what activities to be expected at weekly church gatherings. If location is helpful, US. Doesn't matter whether Catholic or not. Thanks.

Are there recommendations for a (concise) introductory book for learning about the customs and rules of a Christian life? For example, what principles to live by, what to eat and fast during special days in a year, and what activities to be expected at weekly church gatherings. If location is helpful, I live in the United States. It doesn't matter whether Catholic or not.

Are there recommendations for an introductory books for learning about the customs and rules of a christian life? For example, what principles to live by, what to eat and fast during special days in a year, what activities to be expected at weekly church gatherings. If location is helpful, US. Doesn't matter whether Catholic or not. Thanks.

Are there recommendations for a (concise) introductory books for learning about the customs and rules of a christian life? For example, what principles to live by, what to eat and fast during special days in a year, what activities to be expected at weekly church gatherings. If location is helpful, US. Doesn't matter whether Catholic or not. Thanks.