If you compare creating a website to building a house, your sitemap is like the architect’s blueprint. Without it, you might plan a house that doesn’t have enough bathrooms or closets.
Start by thinking of the big buckets of content before getting too detailed.
Can one page convey everything needed, or do you need subpages to give more detail? Short, succinct page titles do better in navigations than long phrases. By taking this step, you can rearrange and prioritize your content before writing begins.
The sample site map below was created using the free tool XMind (XMind website). Paper and pencil, whiteboards, or Excel are all options worth using.