Josh Kaufman THE FIRST 20 HOURS : HOW TO LEARN ANYTHING....FAST - 1 - Portfolio / penguin 2014/01/01 - 274 ISBN: 9780670921928 Source: Purchase Prism Books Pvt. Ltd. Subjects--Uniform Titles: INTELLIGEN Subjects--Topical Terms: Intelligence And Aptitude Dewey Class. No.: 153.9