US groundschool PPL study kit question

[Pugilistic Animus]

I don't use Gleim or King with my students so I can't say
Jepessen is usually very good but expensive

perhaps the list of books that I refer to in this post will be helpful since it's a different topic some of the books listed will not be relevant to you such as Handling the Big Jets but most are very good and are to be recomended furthermore they are cheap!
http://www.pprune.org/7387501-post123.html

http://www.pprune.org/7389490-post128.html

edit: not relevant but I'm obsessive--- the Helicopter Flying handbook is listed wrongly...I meant Rotorcraft Flying Handbook...covers gyroplanes too

hope that helps...