I've promised myself not to invest a penny though until I have read the book above and the one you recommended and have a good understanding of both.
A very wise decision. I have met more people who have lost money by rushing into investments, than those that have made money. In my experience a lot of people believe that successful investing is easy if you are willing to take the risk, but this simply isn't true. It may stem from the fact that it has become incredibly easy to buy and sell funds or equities or other investment products, but that would be simply akin to arguing that cardiac surgery is easy simply because the drive to and from the hospital is simple.
Just as an aside to my earlier comment about taking levels of debt into account when researching companies, I have now also applied this to the countries that I invest in. This has meant that I no longer hold investments in the US, UK (except for two mining companies), Spain and Italy. In my opinion sovereign debt is going to be a major problem for economies and their currencies.