The purpose of this study was to assess the extent of the appropriateness of thernfirst level Afan Oromo, English, Mathematics, and Environmental Science textboolesrnprepared for students of ABE centers at pastoralist and semi-pastoralist areas ofrnOromia Regional State. To conduct the study, content analysis was used as arnmethod. Interviews of Regional Curriculum Department head and curriculum expertsrnof the department who participated in the preparation of the textbooles were appliedrnas a supplementing procedure. The appropriateness of the textbooles' layout,rnobjective-content association, the conditions of illustrations and gender issues wererncoded and analyzed. The findings of this study showed that all contents are inrnharmony with objectives set in the respective syllabi. The illustrations are also inrnharmony with the contents and some of them lacle clarity. The whole textbooles arernprepared on the basis of self directing modes of activities. However, it is found thatrnthe typographic layouts and page setups of these textbooles show insignificantrnvariation with standards set by EMPDA. Significant encouraging attempts andrnefforts have been shown to maintain gender balance, but it is found that thisrnbalance is not maintained perfectly throughout the textbooles. The setup of teamsrnwhose members include curriculum experts, subject experts, practicing teachers,rngraphic designers and so on for the purpose of curriculum materials development;rnediting manuscripts by separate professionals other than the textboole writer(s) as itrncan positively contribute to the quality of the textbooles; revision of the textboolesrnperiodically based on further and comprehensive study including the other aspectsrnof the textbooles quality, paying due attention for the issues related with genderrnbalance; the issues of setting standards and the formulation of textboole policyrnconcentrating on textboole writing, textbooles quality evaluations and approval,rnresearch on textbooles, copyright and similar matters etc. either at federal orrnregional level; allowing publishers' in line with the principles of free marleet economyrnto accomplish the tasle of preparing and publishing textbooles are recommended.