Internet-Linked.
The 'Usborne Pocket Art' series are pocket-sized guides full of tips and ideas to help you draw all kinds of creatures and contraptions. Using easy, step-by-step examples, they show you how to build up detailed scenes from basic shapes. They are also packed with expert advice on techniques and materials for producing really professional-looking pictures.
Each book also contains Usborne-recommended websites to visit if you want to find out more about a subject.