Complex sentence: A hobby shop (or hobby store) sells recreational modelling and craft supplies and specialty magazines for model airplanes (both military craft and airliners), train models, ship models, house and building models.
Split into simpler sentences: A hobby shop (or hobby store) sells recreational items for hobbyists. Classical hobby stores specialize in modelling and craft supplies and specialty magazines for model airplanes (both military craft and airliners), train models, ship models, house and building models.