I've seen this topic come up around the web a few times, so I thought I'd put together a list of what folks are recommending as far as neurosurgery resources go. Here are a few; feel free to leave your favorites or any I missed!
CNS Neurosurgery Survival Guide (available on apple and android)
Neuroanatomy Through Clinical Cases
Atlas of Neurosurgical Techniques: Spine & Peripheral Nerves (pricey; ask your employer!)
Atlas of Neurosurgical Techniques: Brain (also a bit pricey)
Practice Suture Kit (can also ask your reps, who may be able to get you free practice kits)