I am using documentclass book and generating short chapters (one or two pages each). The chapter headings use too much space. I want the title at the top of the page, not pushed down.
I reduced some by changing
Chapter 1.
Chapter Title Here
to
- Chapter Title Here
The code to achieve this:
\titleformat{\chapter}
{\normalfont\LARGE\bfseries\color{DarkBlue}}{\thechapter.}{1em}{}
but the line is still too far down the page.
I can see the answer in How to format the chapter heading?
but I do not understand what to do with the vspace command. Please excuse my ignorance, but the syntax of latex is really arcane.