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“I hear colleagues in humanities courses saying the same thing: It’s back to the blue books,” MacKellar said.

He was clean-shaven and carried a bible and a blue book of dedications which had "Jesus First" emblazoned on its cover.

In the meantime, some college professors have returned to making students take in-class essay exams in blue books — no computers allowed — after two years of COVID-induced hybrid learning.

So, U.S. officials say, plan your trips early, and start finding and inspecting your passports, or beginning the process for a first-time blue book, now.

Scattered across the water are single sandals, medicine bottles and the bright blue books of elementary students that spill out from the windows of half-submerged schools.