Websites or books??

[Glamoreyez]

Does anyone have any websites or books they could recommend for step parenting?

DP and I have 4 kids between us - he has 2 DD's 13 and 14 from his first marriage and I have a DS 8 from my first marriage and we have a DD 2.9 together.

We have 3 main issues:
• DP feels that my DS doesn't respect him or listen to him so in return he speaks rather snarky to him. This upsets DS as he feels that DP is always speaking angrily to him and I agree which makes me step in and pull DP up because DS is a very sensitive kid that suffered anxiety thanks to my poor choice of father... DS loves DP but is starting to resent the way he is spoken to..
• DP's DD 13 HATES me. She is an incredibly manipulative child and despite my trying to be her friend for years, I just get the attempts slapped back in my face. She doesn't like coming here and has issues because she isn't favorited and treated like a princess. I think it's getting to a point where we are both barely tolerating each other and it's not right. DP feels a lot of anger and guilt about this because he feels he hasn't protected her.
• DP is very jealous of the close bond that his DD 14 and I share. He feels she loves me more and is only living with us because of me. I can't step away from my girl as it would break her heart...

Please no judgement - we know these are big issues which is why we are looking for solutions... TIA!