schoolbag; satchel; bookbag; CL:個|个[ge4],隻|只[zhi1]
书 · 4 strokes
Simplified form of 書. Phonosemantic compound. 聿 represents the meaning and 者 represents the sound. The simplified character 书 is derived from the cursive form of 書.
包 · 5 strokes
Depicts a person (勹) hugging a child (子). Based on the original meaning "to embrace", now written as 抱. The meaning later shifted to "cover" and "wrap".