Pros
I worked with a lot of great people there, many of whom are still great friends. Pearson has a creative environment that allowed me to really use my skills. The benefits were great: every time they acquire a new company, the benefits for everyone are raised to meet the group with the better benefits.
Cons
In my division (textbooks), there was a big push to create digital textbooks. Great idea, but a lot of employees were so entrenched in the print world that it was difficult for them to transition. In addition, they made a lot of terrible mistakes with technology. I've never seen another company that was so bad in how they implemented and managed technological solutions. It was breathtaking. But the worst of it was that Pearson loves layoffs. Every few months another group of people were laid off. I never really felt secure in my job there, even though co-workers and managers loved my work.