Learn SEO without spending a bundle

If your company plans to do most of its advertising using Google AdWords, I recommend a free, readily available route instead - the Google AdWords Learning Center.

It has easy to follow instruction as well as quizzes at the end of each topic. If you so choose you can take the Google Advertiser Professional Exam too. It costs $50 and is part of the Google Advertiser Professional Program that its own set of requirements.

There is also a free electronic textbook Google provides as well that I believe goes more in-depth.

To the point of some, you may wish to have a course that explores other marketing concepts that can be combined with SEO such as social media or PR. However if you are just starting to get your feet wet when it comes to SEO, why not go the free route and see if "free" meets your needs. If it doesn't hit all of the points desired, at least you have better idea of the type of information you prefer to know and will be able to better select a paid resource and potentially get a higher return on investment.