How Index numbers work

Book Collector automatically assigns and increments index numbers. The Index value is assigned when you add an book to the database. The next book you add to your collection will have an index number that is incremented by 1. Each Index number is only used once. When a number is deleted, the next added book will still increment on the last added book.

Example:

  • If you have #s 1,2,3,4,5,6,7,8,9,10
  • You delete #4
  • The next book you add will automatically be #11. #4 will not return.
  • If you manually change #11 to #4, the next book you add will be #12 – so you will be missing #11.

Auto Increment Index can be switched off if you want via menu Tools > Options > Index Field
Or if you’re on macOS, click menu Book Collector > Preferences > Index Field

Automatically Re-assign Index Numbers

If you automatically want to fill in the gaps, you can re-assign Index numbers:

  1. Click menu Tools > Maintenance > Re-Assign Index fields
  2. Choose which fields the software should sort all books on, and it will assign index numbers based on that sorting.

Manually change Index Numbers

  1. Select the book
  2. Click the Edit button (pencil button on toolbar)
  3. Change the number in the INDEX field for that book. (bottom of the edit screen).
  4. Click OK.

Need more help with this?
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