Here are some showcase books just to show what a GeoGebraBook can be: [br][br][list][*]Pythagoras theorem proofs without words: [url=https://tube.geogebra.org/material/simple/id/615817]https://tube.geogebra.org/material/simple/id/615817[/url] [br][/*][*]Proof without words (new): [url=https://tube.geogebra.org/material/show/id/2816545]https://tube.geogebra.org/material/show/id/2816545[/url] [/*][*]Proof without words (Chinese/English): [url=https://www.geogebra.org/material/simple/id/72858]https://www.geogebra.org/material/simple/id/72858[/url] [br][/*][*]And another one: [url=https://www.geogebra.org/material/simple/id/78102]https://www.geogebra.org/material/simple/id/78102[/url] [br][/*][*]Geometry: [url=https://www.geogebra.org/material/simple/id/903093]https://www.geogebra.org/material/simple/id/903093[/url] [br][/*][*]Geometry and Algebra:[url=https://www.geogebra.org/material/simple/id/2530943#material/440929]https://www.geogebra.org/material/simple/id/2530943#material/440929[/url] [br][/*][*]Engineering maths: [url=https://www.geogebra.org/material/simple/id/1809689#]https://www.geogebra.org/material/simple/id/1809689#[/url] [br][/*][/list]