perhaps the GTM series has some bad titles; i haven't read them all. but it has some good titles, and from the description original poster's background, it's p

perhaps the GTM series has some bad titles; i haven't read them all. but it has some good titles, and from the description original poster's background, it's probably as far as the person wants to stretch right now. sure, the cambridge advanced math series might be more "quality," but those also tend to be both very focused (in terms of specificity of the topic) and very dense (in terms of delivering a lot of results with almost zero fluff).