Just checked out that site you referred to, Johanna. Not only is it written in easy to understand language, but there are quite a few topics there, with integrated themes throughout each subject, and they are all totally free.
I have noted down the details and shall be venturing onto there at some point today. There are so many gaps to my non-existent knowledge-base, that it will be a delight to feed my intellect and imagination on some of the facts to be found at site.
Just to add the proviso. I say 'facts' but I am sure you are all aware that what I will be reading there, will be versions of 'his-story', and everything that has evolved from that, with a male narrative twist on things.
As that is the most dominant dialogue everywhere, if you want an assessment of the past, or delve into how the economic system is all set up, then for the most part, on these type of sites, you have to follow formula. Once the basics have been learnt, you can go 'off piste' and find some stuff onlne or books, that offer alternative takes to life and everything that has emanated from that. So thanks again for that website info. Going to prove insightful, methinks...