A child King comes to the throne of Israel. Josiah influenced by a true priest of Yahweh begins a reform to remove the high places in 628 BC. Writing at the same time, the only prophet from the royal line is Zephaniah. Three short chapters helps us understand "The Day of the Lord" that will cover several thousand years with both near fulfillments and far fulfillments yet to occur. Read Zephaniah first to get an overview, then read it again and try to understand the important message it imports.
If you choose to study the book with me it is my prayer that you will gain insight resulting in practical understanding effecting our own time.