Knut Secretary-General Wilson Sossion termed the new directive a major scandal in the offing.
The nominated ODM lawmaker said the right to choose books should be reverted to teachers.
The booksellers’ national vice chairman Patrick Matindi urged Dr Matiang’i to give them three years to sell their stock.
The Kenya National Union of Teachers (Knut) and the Kenya Booksellers and Stationers Association have opposed a move by the government to directly supply textbooks to schools next year.
On Monday, Education Cabinet Secretary Fred Matiang’i said this is a deliberate move to ensure funds meant for buying textbooks are used well and reduce corruption in procurement.
In the new guidelines, Form One students who report to school between January 9 and January 12 will be issued with six textbooks — for maths, English, chemistry, physics, biology and Kiswahili.
But Knut officials and the booksellers are calling for more consultations.
“Under International Labour Law recommendation number 60 on the intellectual right of teachers, one such right is to choose textbooks to use in class. No none should choose a textbook for you.