Subjects

    Arts (823, 437, 9)
        Arts in General (149,157,4)
        History of Arts (311,60,2)
        Painting (64,34,0)
        Drawing (127,82,1)
        Animation (16,23,0)
        Graphic Design (98,49,2)
        Other Arts (58,32,0)
    Biology (2106, 698, 27)
        Biology in General (1413,515,14)
        Genetics (331,93,9)
        Other Biology Subjects (362,90,4)
    Body and Health (1001, 297, 22)
        Body in General (135,52,1)
        Anatomy and Physiology (312,86,13)
        Alternative Medicine (42,10,2)
        Medicine and Health (140,62,3)
        First Aid Training (54,8,0)
        Pharmacology (123,24,2)
        Dietetics (44,7,0)
        Sexuality (40,26,0)
        Cosmetics (20,3,0)
        Personal Training (49,8,0)
        Other Body Subjects (42,11,1)
    Chemistry (1904, 627, 32)
        Chemistry in General (1522,543,30)
        Other Chemistry Subjects (382,84,2)
    Cinema (120, 39, 0)
        Cinema in General (49,15,0)
        Cinema History (42,7,0)
        Cinema Acting (11,7,0)
        Cinema Directing (9,7,0)
        Other Cinema Subjects (9,3,0)
    Computers, ICT (6093, 2065, 201)
        Computers in General (1018,444,17)
        Computer Literacy (238,48,1)
        Programming Languages (2349, 979, 129)
            Programming Languages in General (241,77,5)
            C (113,15,3)
            C++ (388,96,10)
            C# (174,145,25)
            Java (457,281,40)
            HTML/CSS (328,90,9)
            Javascript (204,80,7)
            PHP (164,77,14)
            Node.js (2,1,0)
            Objective-C (8,2,0)
            Visual Basic (73,14,1)
            Python (111,75,12)
            Perl (8,1,0)
            Swift (3,3,0)
            Ruby (1,0,0)
            Transact-SQL (27,9,2)
            Unix Shells (47,13,1)
        Software Development Platforms (300, 89, 6)
            Software Development Platforms in General (36,29,2)
            Microsoft .NET (107,28,0)
            Apache MySQL PHP (59,11,2)
            Java Development Platform (98,21,2)
            Amazon Alexa Skills
        Software development for mobile devices (56, 17, 3)
            iOS software development (10,2,0)
            Android software development (42,13,3)
            Software development for other mobile systems (4,2,0)
        Content Management Systems - CMS (71, 31, 4)
            Joomla (13,10,2)
            Wordpress (43,18,2)
            Other CMS (15,3,0)
        Databases (634, 121, 13)
            Database Theory (145,16,2)
            SQL Server (146,36,4)
            Databases - Oracle (101,29,5)
            Databases - DB2 (11,2,0)
            Databases - Teradata (5,1,1)
            Databases - MySQL (101,20,1)
            SQL Language (125,17,0)
        Data Communications (71,22,2)
        Data Security (37,17,2)
        Operating Systems (282, 72, 7)
            Unix (39,13,1)
            Windows (152,20,0)
            Linux (74,36,6)
            Mac OS (17,3,0)
        Computer Applications (732, 93, 7)
            Microsoft Word (223,16,0)
            Microsoft Excel (206,20,1)
            Microsoft PowerPoint (144,5,0)
            Microsoft Access (42,13,2)
            AutoCAD (48,20,4)
            Adobe Photoshop (38,11,0)
            Apple Final Cut (1,1,0)
            Maxon Cinema 4D (0,1,0)
            Desktop Publishing Software (6,1,0)
            Other computer applications (24,5,0)
        IT Project Management (80,44,6)
        IT Quality Assurance (32,7,0)
        Search Engine Optimization - SEO (26,9,0)
        Ethical hacking (16,19,2)
        Other Computer Subjects (151,53,2)
    Cooking, Food and Drink (249, 69, 2)
        Cooking, food and drink in general (122,36,1)
        Italian Cuisine (48,5,1)
        French Cuisine (9,5,0)
        Oriental Cuisine (11,3,0)
        Pastry (19,3,0)
        Wine making, Enology (1,2,0)
        Wine tasting (1,1,0)
        Beer making (2,0,0)
        Other Food and Drink Subjects (36,14,0)
    Crafts (107, 32, 2)
        Do-it-yourself (52,9,1)
        Pottery (3,3,0)
        Jewelery (10,3,0)
        Carpentry (3,2,0)
        Electric Works (3,1,0)
        Construction (5,2,0)
        Butchery
        Plumbing (2,8,0)
        Blacksmith Works (1,0,0)
        Mechanic Works (2,2,1)
        Other Crafts (26,2,0)

    Economics, Business (2963, 834, 29)
        Economics in General (616,241,8)
        Macro-economics (260,49,2)
        Micro-economics (287,52,2)
        Accounting and Bookkeeping (486,91,7)
        Accounting and ERP software (46, 14, 0)
            SAP (26,6,0)
            Quickbooks (7,6,0)
            Other accounting and ERP software (13,2,0)
        Tax (72,12,0)
        Finance and Banking (224,87,2)
        Investments (67,12,1)
        Insurance (22,3,0)
        Business Management (305,138,3)
        Public Relations (25,5,0)
        Marketing (191,58,1)
        Advertising (45,6,0)
        Procurements (6,4,0)
        Human Resource Management (120,27,2)
        Personnel Recruiting (15,0,0)
        Job Search (23,1,0)
        Job Interview Preparation (65,2,0)
        Project Management (75,30,1)
        Quality Assurance (13,2,0)
    Engineering (705, 433, 22)
        Automobile Engineering (76,37,0)
        Motorcycle Engineering (17,5,0)
        Aviation Engineering (45,24,2)
        Other Engineering (567,367,20)
    History (1421, 382, 11)
        History in general (849,209,5)
        Contemporary History (100,14,1)
        Pre-historic (< 2500 BCE) (9,6,0)
        History - Earliest records (2500 - 500 BCE) (31,3,0)
        History - Antiquity (500 BCE - 500 CE) (59,7,0)
        History - Middle Ages (500-1492) (60,18,1)
        History - Early modern (1492-1789) (54,13,0)
        History - Modern (1789-1989) (57,21,0)
        History of the Americas (42,33,2)
        History of Europe (49,9,1)
        History of Asia (35,8,0)
        History of Africa (18,5,0)
        History of Australia (3,1,0)
        Historiography (11,0,0)
        Other History Subjects (44,35,1)
    Hobbies (162, 58, 1)
        Gardening (19,6,0)
        Graphology, Handwriting Analysis (10,3,0)
        Games (83, 26, 1)
            Chesss (35,3,0)
            Card Games (11,3,0)
            Society Games (2,0,0)
            Computer Games (25,17,0)
            Other Games (10,3,1)
        Other Hobbies (50,23,0)
        Other Internet subjects (21,7,1)
        Internet Technology (106,41,2)
        Internet Services (32,7,1)
        Internet Regulations (5,1,0)
        Internet Sociology (10,2,0)
        Internet Marketing (66,16,2)
    Internet (613, 124, 6)
        Internet in General (373,50,0)
    Languages (11607, 1859, 140)
        Arabic (308,52,2)
        Bulgarian (22,2,0)
        Chinese (Mandarin) (194,48,1)
        Czech (9,1,0)
        Danish (6,1,0)
        Dutch (19,12,3)
        English (5150,823,71)
        Finnish (5,0,0)
        French (1098,237,11)
        German (499,174,18)
        Swedish (14,3,0)
        Other Languages (321,34,2)
        Russian (281,33,1)
        Sanskrit (14,6,1)
        Spanish (1188,211,13)
        Swahili (147,28,4)
        Hebrew (18,9,0)
        Hindi-Urdu (179,8,0)
        Italian (1289,82,10)
        Indonesian (13,6,0)
        Latin (362,27,0)
        Norwegian (4,0,0)
        Japanese (63,26,0)
        Polish (25,0,0)
        Portuguese (123,21,1)
        Greek (ancient) (192,11,1)
        Greek (modern) (64,4,1)
        Other Law Subjects (77,17,1)
        Intellectual Property Law (Copyright) (17,1,0)
        International Law (55,11,1)
        Civil Law (76,10,0)
        Criminal Law (52,24,0)
        Public Law (96,13,0)
    Law (688, 139, 3)
        Law in General (315,63,1)
        German Literature (63,10,0)
        Other Literature Subjects (77,22,5)
        Creative Writing (371,62,7)
        Poetry (119,27,3)
        Humour (8,2,0)
        Journalism (54,14,0)
        Other National Literatures (47,4,0)
        English Literature (677,212,10)
        French Literature (187,17,0)
        Spanish Literature (142,15,0)
        Italian Literature (549,39,0)
    Literature, Writing (3210, 609, 35)
        Literature in General (695,164,9)
        History of Literature (145,8,0)
        Classical Studies (76,13,1)
        Matlab (192,41,5)
        Other mathematical subjects (853,242,27)

    Mathematics (10942, 2740, 202)
        Mathematics in General (4165,1171,67)
        Algebra (2100,812,73)
        Trigonometry (1521,179,6)
        Calculus (1264,214,16)
        Differential equations (847,81,8)
        Newspaper and Magazine Publishing (19,6,0)
        Sound Engineering (8,4,0)
        TV and Radio Production (19,10,0)
    Media, TV, Radio, Publishing (116, 71, 1)
        Media and Publishing in General (35,37,1)
        Video Editing (35,14,0)
        Violin (12,14,0)
        Singing (88,32,2)
        Other musical instruments (33,21,0)
        Other Music Subjects (59,15,0)
        Harmonica (1,0,0)
        Bass Guitar (18,3,0)
        Flute (18,5,0)
        Drums, Percussions (10,6,0)
        Solfege (88,11,0)
        Music software and Technology (17,9,0)
        Piano, Organ (86,34,0)
        Guitar (69,23,1)
    Music (568, 190, 4)
        History of Music (69,17,1)
        Other Philosophy Subjects (76,17,0)
        Philosophy in General (436,66,4)
        Philosophical counseling (21,1,0)
    Philosophy (762, 107, 4)
        History of Philosophy (229,23,0)
        Digital Photography (43,30,0)
        Analog Photography (10,1,0)
        Image Processing Software (27,7,0)
        Other Photography Subjects (10,4,0)
    Photography (104, 51, 0)
        Photography History (14,9,0)
        Physics in General (1862,450,27)
        Electricity and Electronics (535,63,4)
        Other Physics Subjects (366,59,1)
    Physics (2763, 572, 32)
        Other Politics Subjects (23,11,2)
        Political Science in General (125,42,2)
        History of Politics (28,7,0)
    Politics (176, 60, 4)
        Other Mind-related Subjects (72,15,1)
        Love and Relationship (70,11,0)
        Emotion (68,9,0)
        Psychotherapy (40,12,0)
        Psychology in General (348,123,4)
        Motivation (80,10,0)
    Psychology (678, 180, 5)
    Religion (267, 59, 1)
        History of Religions (56,14,0)
        Religion in General (141,34,1)
        Other Religion Subjects (70,11,0)
        How to Increase Self-Esteem (105,3,0)
        How to Increase Motivation (97,3,0)
        How to Overcome Shyness (73,4,0)
        How to Overcome Fears (57,1,0)
        Other Self-improvement Subjects (24,5,0)
        Self-improvement in General (237,22,0)
        Personal Development (112,11,0)
    Self-improvement (705, 49, 0)
        Martial Arts, Self-Defense (27,7,0)
        Ski, Snowboard (1,1,0)
        Other Sports (99,40,0)
        Skating (2,3,0)
        Golf (3,2,0)
        Swimming (25,16,0)
    Sports (157, 69, 0)
        Other Theatre Subjects (12,5,0)
        Theatre Acting (51,39,0)
        Theatre Directing (13,1,0)
    Theatre, Drama (113, 50, 0)
        Theatre History (37,5,0)
        Restaurant Management (16,3,0)
        Event Management (22,6,1)
        Tour and Travel Management (76,29,0)
        Party Organization (13,2,0)
        Hotel Management (36,19,0)
    Tourism and Entertainment (163, 59, 1)
        Other Sciences and Technologies (95,50,1)
        Astronomy (17,8,0)
        Zoology (79,7,0)
        Zootechny, Animal Farming (7,3,0)
        Geology, Earth Sciences (94,44,3)
        Quantity surveyor and land surveyor subjects (22,3,0)
        Botany (71,3,0)
        Statistics (212,68,15)
        Ecology, Environment Sciences (101,26,2)
        Agriculture, Agronomy (35,5,0)
        Architecture (29,10,0)
    Other Sciences (762, 227, 21)
    Other Social Sciences (740, 180, 5)
        Social Sciences in General (154,33,2)
        Anthropology (62,11,0)
        Pedagogy, Education (94,19,1)
        Geography (204,44,0)
        Linguistics (72,24,2)
        Sociology (125,30,0)
        Other Social Sciences (29,19,0)
        Other Subjects (286,201,6)
        Private investigations (detective) (0,1,0)
        Pets and Animals (20,9,0)
        Magic, Illusionism, Prestidigitation (1,2,0)
        Psychic Reading (3,5,0)
        Astrology and horoscope (8,3,0)
        Numerology (7,2,0)
        Shiatsu Massage
        Meditation (23,5,0)
        Reiki (6,1,0)
        Disk Jockey (1,0,0)
        Yoga (25,5,0)
        Dance (29,11,0)
        Life Coaching (84,6,0)
        Fashion and Textiles (23,9,2)
        Public Speaking (109,13,0)
        Archaeology (14,4,0)
        Interior design and decoration (25,7,0)
        Primary School Subjects (568,57,3)
        Antiques (1,5,0)
    Other (1233, 346, 11)