Topics
161 topics across Comprehend2XL. Pick anything that catches your eye — passages range across all five levels.
history16technology10economics7innovation7invention7science7finance6entrepreneurship4folklore4Friendship4health4nature4AI3biology3business3engineering3Mythology3physics3sports3Technology History3animals2biography2culture2electric vehicles2football2Genetics2heroes2Medicine2money2personal finance2robotics2space2space exploration2adventure1ancient civilizations1ancient Greece1animation1astronomy1automotive industry1automotive safety1basketball1battery technology1biochemistry1biomedical technology1Biotechnology1birds1blockchain1body1brand history1Brazil1British Empire1budgeting1business history1business strategy1cautionary tale1children's story1city park1civilization1climate1commerce1Consequences1consumer electronics1controversy1corporate strategy1courage1creativity1credit score1cricket1CRISPR1cryptocurrency1Curiosity1daily objects1diagnostics1digital finance1drones1e-commerce1Earth science1electricity1emergency preparedness1emotions1energy1ethics1family1fantasy1feelings1fiber optics1financial literacy1first aid1Future1future technology1geography1global communication1global trade1globalization1gods1Government Policy1graphic design1Greek Mythology1Hope1hygiene1imagination1immune system1India1inflation1infrastructure1internet infrastructure1Japanese culture1justice system1kindness1knowledge1law1leadership1Letter1life cycle1logistics1magic1manufacturing1Mars1medical imaging1medical science1miniaturization1MRI1mystery1navigation1Norse mythology1ocean1Personal Computing1photovoltaic1problem-solving1product development1renewable energy1renewal1rocket science1rules1safety1school1seasons1small business1social impact1solar energy1Space Colony1space elevator1sports history1startups1stories1story1strength1submarine cables1supply chain1technology innovation1teenagers1textiles1toys1trade1trickster tales1US History1Walt Disney1water cycle1weather1West Africa1zero gravity1