One of the many strengths of Photoshop is its extensibility. Especially the brushes-section can be easily packed with hundreds and hundreds of different styles. Today we sort the wheat from the chaff and present you 40 high-grade sets that have the potential to unleash your creativity to whole new levels. All the brushes can be used free of charge, while it is always advisable to check the licence and its compliance to the project you are about to create.