Note that, in the higher tantras, there is talk of a self and an I, even though in the lower teachings the absence of self and the absence of I is what is always proclaimed. - Tony Duff To educate the educated is notoriously difficult. - Jacques Barzun སརྦ་དྷརྨ་དྷཱ་ཏུ་ཨཱཏྨ་ཀོ་྅ཧཾ༔
I read both of those a few years apart, and I don't remember many big differences. I read the older one as a hardback, so that was a nicer book in general. That's all I can remember. I don't think you'll go wrong with either.