Chess Calculation Books by Soltis

Would you recommend the following two books by Andrew Soltis on chess calculations:

The Inner Game of Chess: How to Calculate and Win

How to Choose a Chess Move

Would these books help intermediate players improve?

I recommend Soltis' new book "Studying Chess Made Easy". 

I've read How to Choose A Chess Move.  I think that it's a good attempt to explain some difficult concepts, so that they are easier to follow.  Alexander Kotov's Think Like a Grandmaster and Jonathan Tisdall's Improve Your Chess Now are other useful books on this topic.

there are this chess book that really help me and that is an endgame study book, it called silman's complete endgame course, it have everything from unrated to master