Introductory and Intuitive book covering Probability, Combinatorics, and Statistics.
Some books that are "Introductory and Intuitive" have read in the past are Calculus Made Easy by Silvanus P. Thompson, Div Grad Curl and All that by H M Schey and Differential Equations by Shepley Ross. Any book written in the ease and clarity, on the topics mentioned above, as these would be highly appreciated.