# How to get capital letters in the titles of a biblatex bibliography [closed]

I am using `biblatex` together with biber and the `biblatex-fiwi` package.

Each word in the title data entry of the items in my bibliography should have an initial capital letter. Is there any easy way to force `biblatex` to display all the entries in my bibliography this way? Which file(s) do I have to edit and which line of code do I have to add?

The `biblatex`-command in my `.tex` document looks like this:

``````\usepackage[style=fiwi2,backend=biber]{biblatex}
``````

`fiwi 2` is my current bib-style. I guess I have to change/add something in the `.bbx` or `.cbx` files of the `fiwi` package?

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Try `\DeclareFieldFormat{booktitle}{\MakeCapital #1 }` –  Marco Daniel Aug 10 '12 at 14:05
@Marco Thanks for the suggestion. I changed my Tex-File and the `fiwi2.bbx`-file. According to this post, both should be possible, but unfortunately, nothing worked - all book titles are displayed as before. –  muderseb Aug 10 '12 at 14:39
And the star version `\DeclareFieldFormat*{booktitle}{\MakeCapital #1 }` –  Marco Daniel Aug 10 '12 at 14:40
@Marco Done :-) This didn't help either. I guess it doesn't matter whether I edit both files simultaneously or only one at a time? I also tried `\DeclareFieldFormat{titlecase}{\MakeCapital{#1}}`, buiding on this question; I suppose the difference is that the latter command applies to all titles, not just book titles? –  muderseb Aug 10 '12 at 15:00
Hello. I would really like to see how this matter was answered. –  Costanza Aug 24 '12 at 8:14