How to change category from Composition to Book?

[trrill]

I've just contributed my first scan to IMSLP, but I must've forgotten to set the proper category.

The work New vocal instructor should be in the Books tab, rather than the Compositions. How do I go about changing this?

https://imslp.org/wiki/Category:Corri,_Philip_Antony

[cypressdome]

Edit the work page and add the following line in the *****WORK INFO***** area:

|Page Type=Book