The difference between major and minor version in sharepoint

A "Major" is a PUBLISHED document.

A "Minor" is an UN-PUBLISHED document in DRAFT mode.

The user must belong to the "Approvers" group in order to see draft mode

pages or belong to the "site collection administrator" group; you can also

create a custom permission level called "Content Reviewer" for example.

1) Go to SITE SETTINGS -> SITE PERMISSIONS; from the SETTINGS menu, click on

PERMISSION LEVELS.

2) Click ADD A PERMISSION LEVEL and assign it a name of "Content Reviewer"

with the following permissions:

For LIST PERMISSIONS:

-Edit Items

-View Items

-Open Items

For SITE PERMISSIONS:

-View Pages

-Open

4) Then, go to "PEOPLE AND GROUPS" and in the GROUPS section click "New

Group" found under the NEW menu. Give it a name of "Content Reviewers" and

under "Give Group Permission to this Site" select the box labelled "Content

Reviewer".

The users would only be able to review the draft content, but not approve it.