This is like the history text books we had in the 1950's, which it may have been.
Pure unadorned text. No concessions to short attention spans here.
I read it on my Ipad however and was able to switch to Wikipedia for analysis, pictures and maps as the mood took me. Wonderful stuff.
I thoroughly enjoyed reading it and can heartily recommend it.
You don't have to take my word for it either. Google the author's name and read a review written when it was first published, 1938.
History makes history.
Also it's free!