top of page
Our Classes
Welcome everyone to the largest source of independent original ESL class material in the world.
Here you'll find all kinds of ready-to-use classes for your advanced ESL journey! Become a MASERA Student or join our subscription program for ESL Teachers today!
Search


Bond, James Bond: The History of 007
The James Bond film franchise, also known as 007 , is one of the most enduring and iconic in cinematic history. Created by author Ian...
Marcelo Serafim
Jul 124 min read


Levi's Jeans: From Gold Rush to Global Icon
Levi’s jeans, one of the most recognized clothing brands in the world, began with a simple idea during America’s 19th-century Gold Rush....
Marcelo Serafim
Jul 124 min read


Near-Death Experiences: A Glimpse Beyond Life
A Near-Death Experience (NDE) is a profound personal event that occurs when someone is close to death or has been clinically dead and...
Marcelo Serafim
Jul 104 min read


Albert Einstein: The Genius Who Changed Science Forever
Albert Einstein is widely regarded as one of the greatest scientific minds in history. Born on March 14, 1879, in the city of Ulm, in the...
Marcelo Serafim
Jun 304 min read


The History of Video Games: From Atari to the Modern Console Wars
1. The Birth of Home Gaming: Atari The video game revolution began in the early 1970s when Atari was founded by Nolan Bushnell. Atari...
Marcelo Serafim
Jun 274 min read


Nespresso: The Art of the Perfect Cup and a Masterclass in Brand Success
Nespresso, a brand synonymous with convenient, high-quality coffee, stands as a remarkable case study in modern marketing and product...
Marcelo Serafim
Jun 276 min read


Israel, Iran and Palestine a Lifelong Conflict
The Middle East has long been a crucible of geopolitical tensions, and at its heart lies a multifaceted, deeply entrenched conflict...
Marcelo Serafim
Jun 206 min read


A Century of Skies: Tracing the History of Airline Accidents and the Relentless Pursuit of Safety
The allure of flight has captivated humanity for centuries, yet its realization has been punctuated by moments of profound tragedy. The...
Marcelo Serafim
Jun 167 min read


Sponsorship and Mentoring in the Corporate World: Leadership in Focus
In the dynamic landscape of the corporate world, sponsorship and mentoring have emerged as pivotal mechanisms for fostering leadership...
Marcelo Serafim
Jun 105 min read


Sigmund Freud: His Ideas, Inventions, and Controversies
Sigmund Freud, an Austrian neurologist born in 1856, is widely regarded as the father of psychoanalysis, a field that revolutionized the...
Marcelo Serafim
Jun 66 min read


Why Are So Many Bunkers Being Built Around the World?
1. The Bunker Boom
Marcelo Serafim
Jun 53 min read


Exploring the Deep Web and Dark Web: Beyond the Surface Internet
1. The Layers of the Internet
Marcelo Serafim
Jun 34 min read


The Rise of Artificial Intelligence: Where We Are Now
1. A Technological Turning Point Artificial Intelligence (AI) has reached a transformative moment in history. Once limited to science...
Marcelo Serafim
May 294 min read


Pope Leo XIV: The First American Pontiff
On May 8, 2025, the Catholic Church witnessed a historic moment when Cardinal Robert Francis Prevost was elected Pope Leo XIV, becoming...
Marcelo Serafim
May 266 min read


Product Manager: Responsibilities, Challenges, and Importance in Today’s World
The role of a Product Manager (PM) has emerged as a cornerstone in modern businesses, particularly in technology-driven industries. A...
Marcelo Serafim
May 36 min read


A Pharmaceutical Conspiracy
A persistent conspiracy theory claims that the pharmaceutical industry has secretly developed cures for deadly diseases like HIV, cancer,...
Marcelo Serafim
May 36 min read


How Spotify Changed the Music Industry
Before Spotify: The Era of Physical Media and Downloads
Marcelo Serafim
May 34 min read


The History of the United States: From Colonial Times to the End of the Civil War
Colonial Beginnings
Marcelo Serafim
May 34 min read


Dinosaurs: A Journey Through Time and Their Eras
Dinosaurs, the awe-inspiring reptiles that dominated Earth for over 160 million years, captivate our imagination with their colossal...
Marcelo Serafim
May 15 min read


Cargill: A Global Agribusiness Giant, Its Family Legacy, and Controversies
Cargill, Incorporated, founded in 1865 by William Wallace Cargill, stands as the largest privately held company in the United States,...
Marcelo Serafim
Apr 237 min read
bottom of page