That's a great link that Rich posted.
Jim Kibler also has an additional video on sanding and scraping. The scraping section begins at 1:18.
With this second video, Jim is working with one of this kit stocks, which is already fully shaped and he only needs to prep it for finish. Based on the heavy scraper marks seen on some antiques, including some I own, I think some old builders did some of their final _shaping_ with scrapers.
Yip, you may want to get a set of preshaped scrapers. I have a set I like made by "Garlick Saw Company", sold as "Shaped Cabinet Scraper Set". Available online. I think I learned about these through a post by Mark Elliot years ago. It is also possible to make scrapers out of pieces of old handsaw blades. But the preshaped ones are very handy.