Wether you are a bloody beginner or advanced Grasshopper user, here are some useful links to tutorials, manuals, books, reference projects and files, etc.

FORUM / EXAMPLES | OFFICIAL GRASSHOPPER 3D COMMUNITY
BLOG | ieatbugsforbreakfast by David Rutten

VIDEO TUTORIALS | Introduction to Grasshopper by David Rutten
VIDEO TUTORIALS | Grasshopper Masterclass by David Rutten
VIDEO TUTORIALS | digital toolbox by Scott Leinweber and Tam Tarn
TUTORIALS | designREform
TUTORIALS | DESIGNALYZE.
TUTORIALS / EXAMPLES in GERMAN | GED/D TH Nürnberg

MANUAL | Grasshopper Primer Third Edition – Foundations by MODE LAB
MANUAL | Grasshopper Primer by Lift Architects
MANUAL | Essential Mathematics for Computational Design by Rajaa Issa

PLUGINs | food4Rhino official Plugin Collections by Robert McNeel & Associates
PLUGIN / TOOLS | Weaverbird by Giulio Piacentino
PLUGIN / TOOLS | neoarchic.net
PLUGIN / TUTORIALS | karamba by Clemens Preisinger in cooperation with Bollinger-Grohmann-Schneider ZT GmbH Vienna

EXAMPLES | atelier nGai
EXAMPLES | the disCONTINUUM
EXAMPLES / STUDIO | SOFTlab
EXAMPLES | designcoding
EXAMPLES | spacesymmetrystructure by Daniel Piker
EXAMPLES / STUDIO | LMNts
EXAMPLES | Co-de-iT