Subjects

    Arts (714, 398, 8)
        Arts in General (141,145,4)
        History of Arts (234,50,2)
        Painting (60,31,0)
        Drawing (119,78,0)
        Animation (15,17,0)
        Graphic Design (91,47,2)
        Other Arts (54,30,0)
    Biology (1870, 658, 27)
        Biology in General (1251,481,14)
        Genetics (292,91,9)
        Other Biology Subjects (327,86,4)
    Body & Health (916, 279, 18)
        Body in General (129,48,1)
        Anatomy & Physiology (274,82,12)
        Alternative Medicine (37,9,1)
        Medicine & Health (134,59,2)
        First Aid Training (51,7,0)
        Pharmacology (109,23,2)
        Dietetics (42,7,0)
        Sexuality (38,23,0)
        Cosmetics (20,3,0)
        Personal Training (43,8,0)
        Other Body Subjects (39,10,0)
    Chemistry (1687, 590, 31)
        Chemistry in General (1341,511,29)
        Other Chemistry Subjects (346,79,2)
    Cinema (108, 35, 0)
        Cinema in General (44,14,0)
        Cinema History (38,5,0)
        Cinema Acting (8,7,0)
        Cinema Directing (9,6,0)
        Other Cinema Subjects (9,3,0)
    Computers, ICT (5849, 2021, 201)
        Computers in General (961,431,17)
        Computer Literacy (226,47,1)
        Programming Languages (2245, 966, 129)
            Programming Languages in General (225,76,5)
            C (98,14,3)
            C++ (380,96,10)
            C# (171,143,25)
            Java (442,280,40)
            HTML/CSS (319,90,9)
            Javascript (198,79,7)
            PHP (163,77,14)
            Node.js
            Objective-C (8,2,0)
            Visual Basic (72,14,1)
            Python (87,69,12)
            Perl (8,1,0)
            Swift (2,3,0)
            Ruby (1,0,0)
            Transact-SQL (25,9,2)
            Unix Shells (46,13,1)
        Software Development Platforms (294, 85, 6)
            Software Development Platforms in General (34,27,2)
            Microsoft .NET (104,27,0)
            Apache MySQL PHP (59,11,2)
            Java Development Platform (97,20,2)
            Amazon Alexa Skills
        Software development for mobile devices (56, 16, 3)
            iOS software development (10,2,0)
            Android software development (42,12,3)
            Software development for other mobile systems (4,2,0)
        Content Management Systems - CMS (73, 30, 4)
            Joomla (13,10,2)
            Wordpress (44,17,2)
            Other CMS (16,3,0)
        Databases (607, 119, 13)
            Database Theory (138,16,2)
            SQL Server (143,34,4)
            Databases - Oracle (100,29,5)
            Databases - DB2 (10,2,0)
            Databases - Teradata (5,1,1)
            Databases - MySQL (94,20,1)
            SQL Language (117,17,0)
        Data Communications (67,22,2)
        Data Security (36,17,2)
        Operating Systems (276, 71, 7)
            Unix (38,13,1)
            Windows (150,20,0)
            Linux (72,36,6)
            Mac OS (16,2,0)
        Computer Applications (707, 90, 7)
            Microsoft Word (218,15,0)
            Microsoft Excel (200,20,1)
            Microsoft PowerPoint (138,5,0)
            Microsoft Access (40,12,2)
            AutoCAD (46,20,4)
            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 (20,4,0)
        IT Project Management (79,41,6)
        IT Quality Assurance (32,6,0)
        Search Engine Optimization - SEO (26,9,0)
        Ethical hacking (15,19,2)
        Other Computer Subjects (149,52,2)
    Cooking, Food & Drink (242, 66, 1)
        Cooking, food & drink in general (118,34,1)
        Italian Cuisine (46,4,0)
        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 & Drink Subjects (35,14,0)
    Crafts (103, 28, 2)
        Do-it-yourself (50,9,1)
        Pottery (3,3,0)
        Jewelery (10,3,0)
        Carpentry (2,2,0)
        Electric Works (2,1,0)
        Construction (5,2,0)
        Butchery
        Plumbing (2,4,0)
        Blacksmith Works (1,0,0)
        Mechanic Works (2,2,1)
        Other Crafts (26,2,0)

    Economics, Business (2697, 801, 28)
        Economics in General (543,226,7)
        Macro-economics (228,48,2)
        Micro-economics (260,51,2)
        Accounting & Bookkeeping (436,88,7)
        Accounting and ERP software (46, 13, 0)
            SAP (26,6,0)
            Quickbooks (7,5,0)
            Other accounting and ERP software (13,2,0)
        Tax (71,12,0)
        Finance & Banking (208,82,2)
        Investments (62,12,1)
        Insurance (20,3,0)
        Business Management (282,133,3)
        Public Relations (25,5,0)
        Marketing (179,58,1)
        Advertising (43,6,0)
        Procurements (6,3,0)
        Human Resource Management (117,26,2)
        Personnel Recruiting (15,0,0)
        Job Search (21,1,0)
        Job Interview Preparation (59,2,0)
        Project Management (65,30,1)
        Quality Assurance (11,2,0)
    Engineering (654, 413, 22)
        Automobile Engineering (74,34,0)
        Motorcycle Engineering (17,5,0)
        Aviation Engineering (41,23,2)
        Other Engineering (522,351,20)
    History (1160, 361, 9)
        History in general (670,196,4)
        Contemporary History (81,13,1)
        Pre-historic (< 2500 BCE) (8,6,0)
        History - Earliest records (2500 - 500 BCE) (25,3,0)
        History - Antiquity (500 BCE - 500 CE) (48,6,0)
        History - Middle Ages (500-1492) (51,17,1)
        History - Early modern (1492-1789) (46,12,0)
        History - Modern (1789-1989) (48,21,0)
        History of the Americas (39,32,2)
        History of Europe (42,9,1)
        History of Asia (33,8,0)
        History of Africa (18,5,0)
        History of Australia (3,1,0)
        Historiography (9,0,0)
        Other History Subjects (39,32,0)
    Hobbies (154, 53, 1)
        Gardening (19,6,0)
        Graphology, Handwriting Analysis (10,3,0)
        Games (76, 24, 1)
            Chesss (30,3,0)
            Card Games (10,3,0)
            Society Games (2,0,0)
            Computer Games (24,15,0)
            Other Games (10,3,1)
        Other Hobbies (49,20,0)
    Internet (608, 122, 6)
        Internet in General (369,48,0)
        Internet Technology (105,41,2)
        Internet Services (31,7,1)
        Internet Regulations (5,1,0)
        Internet Sociology (10,2,0)
        Internet Marketing (67,16,2)
        Other Internet subjects (21,7,1)
    Languages (9897, 1750, 132)
        Arabic (288,51,1)
        Bulgarian (20,2,0)
        Chinese (Mandarin) (178,45,1)
        Czech (8,1,0)
        Danish (6,1,0)
        Dutch (19,11,3)
        English (4426,783,69)
        Finnish (5,0,0)
        French (917,223,11)
        German (393,155,13)
        Greek (modern) (62,4,1)
        Greek (ancient) (152,11,1)
        Hebrew (18,9,0)
        Hindi-Urdu (171,8,0)
        Italian (1011,69,10)
        Indonesian (13,6,0)
        Latin (286,25,0)
        Norwegian (4,0,0)
        Japanese (54,26,0)
        Polish (26,0,0)
        Portuguese (116,21,1)
        Russian (245,32,1)
        Sanskrit (14,6,1)
        Spanish (998,198,13)
        Swahili (143,27,4)
        Swedish (13,3,0)
        Other Languages (311,33,2)
    Law (584, 130, 3)
        Law in General (265,60,1)
        Public Law (80,10,0)
        Civil Law (67,9,0)
        Criminal Law (45,24,0)
        International Law (46,10,1)
        Intellectual Property Law (Copyright) (15,1,0)
        Other Law Subjects (66,16,1)
    Literature, Writing (2685, 549, 35)
        Literature in General (597,157,9)
        Classical Studies (66,12,1)
        History of Literature (132,8,0)
        German Literature (46,6,0)
        English Literature (542,186,10)
        French Literature (150,14,0)
        Italian Literature (420,31,0)
        Spanish Literature (112,10,0)
        Other National Literatures (43,3,0)
        Creative Writing (341,60,7)
        Poetry (104,25,3)
        Humour (8,2,0)
        Journalism (54,14,0)
        Other Literature Subjects (70,21,5)

    Mathematics (10087, 2606, 199)
        Mathematics in General (3793,1122,66)
        Algebra (1940,769,71)
        Trigonometry (1427,172,6)
        Calculus (1175,201,16)
        Differential equations (801,78,8)
        Matlab (171,40,5)
        Other mathematical subjects (780,224,27)
    Media, TV, Radio, Publishing (112, 71, 1)
        Media & Publishing in General (33,37,1)
        Video Editing (35,14,0)
        Sound Engineering (7,4,0)
        TV and Radio Production (19,10,0)
        Newspaper and Magazine Publishing (18,6,0)
    Music (489, 188, 4)
        History of Music (59,16,1)
        Solfege (71,11,0)
        Music software & Technology (16,9,0)
        Piano, Organ (73,34,0)
        Guitar (59,23,1)
        Bass Guitar (16,3,0)
        Flute (13,5,0)
        Drums, Percussions (10,6,0)
        Harmonica (1,0,0)
        Violin (11,14,0)
        Singing (81,31,2)
        Other musical instruments (29,21,0)
        Other Music Subjects (50,15,0)
    Philosophy (617, 99, 4)
        History of Philosophy (192,22,0)
        Philosophy in General (338,61,4)
        Philosophical counseling (15,0,0)
        Other Philosophy Subjects (72,16,0)
    Photography (98, 50, 0)
        Photography History (13,9,0)
        Digital Photography (40,29,0)
        Analog Photography (10,1,0)
        Image Processing Software (25,7,0)
        Other Photography Subjects (10,4,0)
    Physics (2517, 549, 31)
        Physics in General (1675,432,27)
        Electricity and Electronics (501,60,3)
        Other Physics Subjects (341,57,1)
    Politics (160, 58, 4)
        Political Science in General (112,40,2)
        History of Politics (25,7,0)
        Other Politics Subjects (23,11,2)
    Psychology (597, 175, 5)
        Psychology in General (298,121,4)
        Motivation (73,9,0)
        Emotion (59,8,0)
        Psychotherapy (37,12,0)
        Love & Relationship (67,11,0)
        Other Mind-related Subjects (63,14,1)
    Religion (249, 57, 1)
        History of Religions (53,14,0)
        Religion in General (128,32,1)
        Other Religion Subjects (68,11,0)
    Self-improvement (676, 45, 0)
        Self-improvement in General (228,20,0)
        Personal Development (102,9,0)
        How to Increase Self-Esteem (102,3,0)
        How to Increase Motivation (94,3,0)
        How to Overcome Shyness (70,4,0)
        How to Overcome Fears (57,1,0)
        Other Self-improvement Subjects (23,5,0)
    Sports (146, 66, 0)
        Swimming (25,16,0)
        Golf (3,2,0)
        Martial Arts, Self-Defense (24,7,0)
        Ski, Snowboard (1,1,0)
        Skating (2,3,0)
        Other Sports (91,37,0)
    Theatre, Drama (105, 48, 0)
        Theatre History (36,5,0)
        Theatre Acting (44,37,0)
        Theatre Directing (13,1,0)
        Other Theatre Subjects (12,5,0)
    Tourism & Entertainment (147, 57, 1)
        Hotel Management (34,19,0)
        Restaurant Management (13,3,0)
        Event Management (20,5,1)
        Tour & Travel Management (68,28,0)
        Party Organization (12,2,0)
    Other Sciences (683, 220, 19)
        Agriculture, Agronomy (33,5,0)
        Architecture (27,10,0)
        Ecology, Environment Sciences (90,26,2)
        Astronomy (16,8,0)
        Zoology (73,7,0)
        Zootechny, Animal Farming (6,3,0)
        Geology, Earth Sciences (78,43,3)
        Quantity surveyor and land surveyor subjects (18,3,0)
        Botany (68,3,0)
        Statistics (188,64,13)
        Other Sciences & Technologies (86,48,1)
    Other Social Sciences (637, 175, 4)
        Social Sciences in General (143,31,1)
        Anthropology (50,11,0)
        Pedagogy, Education (78,19,1)
        Geography (164,44,0)
        Linguistics (66,23,2)
        Sociology (108,29,0)
        Other Social Sciences (28,18,0)
    Other (1122, 326, 11)
        Primary School Subjects (508,54,3)
        Antiques (1,5,0)
        Interior design & decoration (23,7,0)
        Archaeology (12,4,0)
        Fashion and Textiles (20,8,2)
        Public Speaking (105,13,0)
        Life Coaching (77,6,0)
        Dance (24,11,0)
        Disk Jockey
        Yoga (23,4,0)
        Meditation (20,3,0)
        Reiki (6,1,0)
        Shiatsu Massage
        Astrology and horoscope (6,3,0)
        Numerology (4,2,0)
        Psychic Reading (3,5,0)
        Magic, Illusionism, Prestidigitation (1,2,0)
        Pets & Animals (18,9,0)
        Private investigations (detective) (0,1,0)
        Other Subjects (271,188,6)