Scholbok or Schoolbook: How To spell?

The word Scholbok is misspelled against Schoolbook, a noun meaning "A book used in schools for learning lessons."

Schoolbook has double 'oo' twice appearing mispronounced as 'o'
Remember double 'OO' appears twice in this word which should not be misspelled with single 'O'
Wrong Spelling:  sch-o-lb-o-k 
Correct Spelling:  sch-oo-lb-oo-k 
Find more incorrect spellings of Schoolbook to spell right way.

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