Book Categories
- #nonfiction - 109 Books
- #science - 43 Books
- #history - 40 Books
- #business - 31 Books
- #politics - 25 Books
- #economics - 22 Books
- #philosophy - 19 Books
- #finance - 16 Books
- #self-help - 15 Books
- #physics - 15 Books
- #psychology - 14 Books
- #technology - 13 Books
- #biology - 11 Books
- #fiction - 9 Books
- #management - 9 Books
- #classics - 8 Books
- #biography - 8 Books
- #leadership - 7 Books
- #medicine - 7 Books
- #literature - 6 Books
- #productivity - 6 Books
- #money - 6 Books
- #nature - 6 Books
- #mathematics - 5 Books
- #engineering - 5 Books
- #artificial-intelligence - 5 Books
- #environment - 5 Books
- #sociology - 5 Books
- #genetics - 4 Books
- #health - 4 Books
- #quantum-mechanics - 4 Books
- #war - 4 Books
- #entrepreneurship - 4 Books
- #medical - 4 Books
- #climate-change - 4 Books
- #reference - 4 Books
- #american-history - 4 Books
- #education - 3 Books
- #computer-science - 3 Books
- #memoir - 3 Books
- #religion - 3 Books
- #astronomy - 3 Books
- #science-fiction - 3 Books
- #fantasy - 3 Books
- #space - 3 Books
- #personal-finance - 3 Books
- #evolution - 2 Books
- #banking - 2 Books
- #software - 2 Books
- #futurism - 2 Books
- #political-science - 2 Books
- #personal-development - 2 Books
- #history-of-science - 2 Books
- #sustainability - 2 Books
- #ecology - 2 Books
- #true-crime - 2 Books
- #mythology - 2 Books
- #greek-mythology - 2 Books
- #american - 2 Books
- #essays - 2 Books
- #programming - 1 Book
- #government - 1 Book
- #german-literature - 1 Book
- #video-games - 1 Book
- #politica-science - 1 Book
- #world-history - 1 Book
- #cultural - 1 Book
- #nutrition - 1 Book
- #theology - 1 Book
- #music - 1 Book
- #art - 1 Book
- #communication - 1 Book
- #russian-literature - 1 Book
- #poetry - 1 Book
- #psycics - 1 Book
- #psychoanalysis - 1 Book
- #romance - 1 Book
- #parenting - 1 Book
- #family - 1 Book
- #childrens - 1 Book
- #chemistry - 1 Book
- #animals - 1 Book
- #natural-history - 1 Book
- #conspiracy-theories - 1 Book
- #entrepeneurship - 1 Book
- #comedy - 1 Book
- #crime - 1 Book
- #healthcare - 1 Book
- #society - 1 Book
- #world-war-1 - 1 Book
- #gardening - 1 Book
- #civil-war - 1 Book
- #travel - 1 Book
- #geography - 1 Book
- #neuroscience - 1 Book