It will be helpful to read 2 Kings 22-25 for historical context of Jeremiah's ministry. Then you can begin to read the book of Jeremiah. We are well situated to study Jeremiah based on our previous study of Hosea, lots of the same metaphors used, messianic verses, foundational background of Deuteronomy and historical redemptive timeline in place. The message is appropriate for the time and the urgency of Jeremiah's message should be on each one of our hearts.