This time last year we were celebrating the launch of Dan Zambonini’s A Practical Guide to Web App Success. If you're thinking about creating a web app, have already started to build one, or want to improve an existing app, you need to read this book! A year on and the book has had a great response both from readers and reviewers, including the following from Perch creator Rachel Andrew

“Dan Zambonini has written a practical book, very obviously grounded in personal experience. He has managed to hit a spot between skimming over subjects and going into too much depth for those who are not experts in that area.”

We’ve decided to mark the anniversary with a special 20% sale on Practical Guides – one each day – between 19 and 23 November. Today's sale book is, quite rightly, Web App Success, so it's the perfect time to pick up a copy. The rest of our Practical Guide series will be on offer throughout the week in this order:

We think it's a great way to celebrate. Happy Birthday Web App Success!