helpful Commandment 1 of Bible reading

Commandment One: Remember that the Bible isn’t one book.

Most people do not understand that the Bible is not one single book. It is a collection of 66 books, or better, 66 different parts. Each part is separate and distinct.
The fact that most Bibles are published in one volume has given the mistaken notion that the Bible is one book. These 66 parts have been collected over the years into one place and published as one thing. But it never has been and is not now one book.
People refer to the Bible as one thing. This adds to the confusion. The Bible is not one thing. It is 66 things. These 66 things are collected into one spot. This does not mean that the 66 different things have become one.
Each part is named by the subject, the author, or the intended audience. So Exodus is about the exit of the people from Egypt. Leviticus is about the rules and regulations needed for the sacrifices that God commanded. God commanded that the Levite tribe take care of the sacrificial system that he created. Hosea was written by Hosea, Amos by Amos, and Joel by Joel.
This is not guesswork. The part itself identifies the writer or the subject in the first line. Philippians was written to the people at Philippi and the Ephesians to the people of Ephesus.