I've been keeping a list of recommended resources here: https://bitcointalk.org/index.php?topic=3108929.0

This is the list of books from that thread:

--------------Books
- Blockchain Revolution by Alex & Don Tapscott https://www.amazon.co.uk/dp/B01EGYYNF8/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1]

- Blockchain: Blueprint for a New Economy by Melanie Swan https://www.amazon.co.uk/Blockchain-Blueprint-Economy-Melanie-Swan-ebook/dp/B00SNS9JLW/ref=sr_1_7?s=digital-text&ie=UTF8&qid=1520840872&sr=1-7&keywords=blockchain]

- Digital Gold by Nathaniel Popper

- The Age of Cryptocurrency by Paul Vigna and Michael J. Casey [url=https://www.amazon.co.uk/Age-Cryptocurrency-Bitcoin-Challenging-Economic/dp/B00SXAK6Q2/ref=sr_1_6?s=digital-text&ie=UTF8&qid=1520875545&sr=1-6&keywords=the+age+of+cryptocurrency]

- The Truth Machine: The Blockchain and the Future of Everything also by Paul Vigna and Michael J. Casey (Coming out 22nd March)

- The Internet of Money by Andreas Antonopoulos

- The Internet of Money Vol. 2 by Andreas Antonopoulos

- Bitcoin From Beginner to Expert by Christian Newman

- Blockchain: Discover the Technology behind Smart Contracts, Wallets, Mining and Cryptocurrency (including Bitcoin, Ethereum, Ripple, Digibyte and Others) by Abraham K. White

- Cryptoassets: The Innovative Investor's Guide to Bitcoin and Beyond by Chris Burniske & Jack Tatar https://www.amazon.co.uk/Cryptoassets-Innovative-Investors-Bitcoin-Beyond/dp/1260026671/ref=sr_1_1?ie=UTF8&qid=1520840949&sr=8-1&keywords=cryptoassets]

- Mastering Bitcoin, second edition by Andreas Antonopoulos https://www.amazon.co.uk/Mastering-Bitcoin-2e-Andreas-Antonopoulos/dp/1491954388/ref=sr_1_1?s=books&ie=UTF8&qid=1520841017&sr=1-1&keywords=mastering+bitcoin]

-Blockchain Basics: A Non-Technical Introduction in 25 Steps by Daniel Drescher https://www.amazon.co.uk/Blockchain-Basics-Non-Technical-Introduction-Steps/dp/1484226038/ref=pd_sim_14_5?_encoding=UTF8&psc=1&refRID=NAP99FMW6ET9KPW1S92G]

- Introducing Ethereum and Solidity: Foundations of Cryptocurrency and Blockchain Programming for Beginners by Chris Dannen https://www.amazon.co.uk/Introducing-Ethereum-Solidity-Foundations-Cryptocurrency-ebook/dp/B06XQFYL2M/ref=pd_sim_351_14?_encoding=UTF8&psc=1&refRID=WCDN0CBTB34FZRBM5NN3]

- Bitcoin and Cryptocurrency Technologies by Stanford https://d28rh4a8wq0iu5.cloudfront.net/bitcointech/readings/princeton_bitcoin_book.pdf]