My book (Rust in Action) isn't quite finished yet, but I've made ~4k pre-sales through Manning's Early Access Program. The majority of sales (2.7:1) are ebooks

My book (Rust in Action) isn't quite finished yet, but I've made ~4k pre-sales through Manning's Early Access Program. The majority of sales (2.7:1) are ebooks. I expect that will change when things get to print. The most effective marketing strategy for me has been to just be active in relevant communities. This tweet (https://twitter.com/timClicks/status/1154300574151483394 https://twitter.com/timClicks/status/1154300574151483394) netted me over 300 sales, for example. The royalties are _far_ less for me than the $15 that Kun has been able to achieve, however. Using a traditional publisher achieves about $2.5/sale for me. Although the retail price is $40, it's often heavily discounted. I have 0 influence over the price sold.