I'm thinking series you like, rare finds, debating canonical classics (come get some OTM ), and so on. For my part, I have been tearing into cheap, pulpy scifi this spring. It's been going so well that I'll likely continue into summer (SPRING INTO SCI-FI '17!! becomes SUMMER OF SCI-FI '17!! for great justice). Along the topic of the topic (ugh), I found a series called Chaos of the Covenant. Kindle Unlimited, think it's only like $3 otherwise. Really, really, really fun read. It's a mix of grunt military sci-fi, space opera, and... horror? Prime nerd material, total page turner. Can't recommend it enough if you want a spring break/beach trip read or are just a passionate nerd.