@woo -- #Entropy: I try to avoid to use the terms "#order" and "#disorder".

#SocialSciences: The the measures developped by #AnthonyBarnesAtkinson, #SergeChristopheKolm and #HenriTheil are based on the #ShannonEntropy.

#Thermodynamics: I recommend "Entropy-Demystified, the Second Law of Thermodynamics Reduced to Plain Common Sense" (World Scientific, Singapore, 2007) by #AriehBenNaim (http://www.ariehbennaim.com). The important chapters 1 and 8 are available on-line: http://www.ariehbennaim.com/demo-images/B7-Ch1-8-Pref-.pdf.