Sau Ntawm Bookcases Cov "xyoob" yog cov ntawv sau cia. Cov ntawv sau muaj "phab ntsa version", "cov qhua tuaj yeem hloov kho" thiab "cov ntawv sib dhos". Muaj ib hnub, thaum tus tsim qauv pom tus xyoob, nws xav hais tias, "Yuav ua li cas hais txog kev khaws cov phau ntawv ntawm cov xyoob" thiab qhov ntawd yog qhov pib ntawm kev tsim. Qhov no yog qhov tshwj xeeb ntawm qhov kev tsim no uas tshem tawm cov duab tsis tseem ceeb thiab txuag kab. vim tias nws yog cov phau ntawv ntim phau ntawv uas muab cov phau ntawv sib txawv tshaj li cov txheej txheem ntawm kev ntxig cov phau ntawv ntawm cov pa.
Lub npe Project : Bamboo, Tus tsim qauv lub npe : HeeSeung Chae, Neeg lub npe : C-HEE.
Qhov kev tsim qauv zoo no yog tus yeej ntawm cov khoom plig tsim hauv ntim tsim kev sib tw. Koj yuav tsum pom cov khoom plig tsim-yeej tsim qauv tsim khoom lag luam tsim kom pom ntau lwm yam tshiab, tsim, tshiab thiab tsim ntim ntim ntim ua haujlwm.