Youth 18,919 Young women 6,825 Young men 3,658 Young adult fiction 2,222 Young adults 2,192 Yoga 2,027 Yugoslav War, 1991-1995 1,782 Young Adult Fiction 1,090 Young adult literature 1,023 YOUNG ADULT FICTION 955 Yellow fever 851 Yiddish literature 806 Yoruba (African people) 758 Year 2000 date conversion (Computer systems) 735 Yiddish language 633 Yearbooks 582 Youth development 577 Youth and violence 572 Young Adult Literature 551 Youth with disabilities 544 Young adult fiction, American 476 Youth with social disabilities 439 Yeast 394 Young adults' libraries 375 Yachting 362 Yiddish poetry 355 Yachts 344 Youth movements 312 Yoruba language 302 Young adult literature, American 289 Yields 283 Youth movement 275 Yuan Dynasty (China) 240 Yanomamo Indians 230 Young Men's Christian associations 229 Yaqui Indians 218 Yugoslav literature 208 Yugoslav War Crime Trials, Hague, Netherlands, 1994- 207 Youths' writings 201 Yiddish fiction 200 Yan jiu 188 Yarn 187 Yacht racing 184 Youth and death 180 Yiddish 177 Yeast fungi 169 Young Adult 160 Young adult literature, English 153 Youth in literature 153 Yakuza 152 Yizkor books 152 Yield 149 Youth (Christian education) 148 Yom Kippur 147 Yeasts 146 Yoga, Haṭha 134 Yugoslavs 134 Yogācāra (Buddhism) 127 Yoknapatawpha County (Imaginary place) 127 Yellow Fever 125 YOUNG ADULT FICTION / Romance / Contemporary 124 Yupik Eskimos 124 Young consumers 116 YOUNG ADULT NONFICTION 112 Yoga, Hatha 109 YOUNG ADULT FICTION / Social Themes / Friendship 104 Yoruba 103 Yezidis 102 Young Adult Nonfiction 102 Yeti 101 Youth with mental disabilities 100 YOUNG ADULT FICTION / Action & Adventure / General 99 Youths' writings, American 99 Yi (Chinese people) 98 Young adult literature, Canadian 98 Young volunteers in social service 96 Yiddish drama 93 Young adult literature, European 93 Young volunteers in community development 90 Yttrium 90 Yakut language 88 YOUNG ADULT FICTION / Romance 83 Youth hostels 83 Youth, Black 82 Yogis 81 YOUNG ADULT FICTION / Thrillers & Suspense 80 Yakut (Turkic people) 80 Young adult fiction, English 80 Yum Yum (Fictitious character : Braun) 80 Ywain (Legendary character) 80 Youth in development 79 Yakama Indians 77 Young adult poetry, American 77 Yao (Southeast Asian people) 75 Young adult drama, American 75 Yurok Indians 75 Yiddish wit and humor 69 Young gay men 66 Yue fu (Chinese poetry) 65 Yogurt 64