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HIDE-AND-SEEK MOMMY COVER REVEAL! 😬❤️ I can finally share the first book in this series I’ve been working on in the past months. From the moment I had this idea and through the whole development of this book I haven’t been able to hide a smile.Because I do play hide and seek at home all the time 😅❤️ but croqueta ALWAYS finds me. A fun and unusual take on lift-the-flap board books! That I think will be VERY relatable to many families 😂

“Featuring different mommies looking to take a breather from their rambunctious little ones, lift the sturdy flaps to reveal where each mommy is hiding. In the final scene, all the mommies have gotten together, and guess who’s hiding now?! Young readers will love spotting all the kids’ funny hiding places”

So grateful with the amazing team at @abramskids it’s been amazing to work with Meredith and Melissa, who were so passionate about the project right from the beginning. I feel so lucky to have worked (and continue working) with them. I also feel very lucky to have @sallyanne_s by my side, super agent, super woman, who’s always so encouraging and enthusiastic ❤️❤️❤️ first of many projects together.
It’ll publish in March 2026! More info on it SOON! #martaaltes #hideandseekmommy #abramsbooks #mothersdaygifts #mothersday2026

🍉🕊️💔STOP KILLING CHILDREN.
STOP KILLING PEOPLE 💔🕊️🍉

I feel like I’m not very good with words, and anything I write feels stupid but I’m angry, I’m horrified, I’m heartbroken with all the images I see coming from Palestine. How is this happening? How is this STILL happening?? How’s the people who can stop it not stopping it? 💔
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I created this image specially for @rise.raise.riso . We are raising money for @medicalaidpal ❤️ (link in my profile)

Again, lost for words on the current situation… 💔 gone to marches, spoken up here, donated and raised money… it all feels a bit helpless. 💔 but we keep trying 🕊️ This is the image I created specially for @rise.raise.riso ❤️ Check the link on my bio or @rise.raise.riso profile to see all the designs created by this wonderful group of illustrators 🕊️❤️ @melissa.castrillon @evaeland @sarahdyer_illustrator @ed_vere @flavia_zdrago @brunice @ehud.neuhaus @mauri.mendes @_beckypalmer @deenface and @yufrukt

All printed in Amsterdam by the Riso Wizard that is @evaeland ❤️

Please, help us raise as much money as possible so we can help vital organizations that are working on the ground in Gaza. There are great prints to purchase, digital downloads ( and the option of simply donating a bit of money, every donation helps) and even if you can’t donate, please help us spread the word. Share our link ❤️❤️❤️

Rise.Raise.Riso is a group of 12 illustrators offering original Riso prints to raise awareness and funds for organisations and individuals doing vital work to support and stand in solidarity with persecuted and vulnerable people around the world.

Last year we raised £10.000 for Medical Aid Palestine. Our second fundraiser is dedicated to three different on the ground organizations : Al-Jawad (@jawadcamp1), Gaza Little Lights (@gazalittlelights), and Grassroots Gaza (@grassroots_gaza) which are all Palestinian led initiatives that focus on supporting children and families in Gaza with direct aid.

100% of the profits of every sale will go to the organisations mentioned above. Help us reach our goal of raising as much as we can and support these vital organisations.

Again, lost for words on the current situation… 💔 gone to marches, spoken up here, donated and raised money… it all feels a bit helpless. 💔 but we keep trying 🕊️ This is the image I created specially for @rise.raise.riso ❤️ Check the link on my bio or @rise.raise.riso profile to see all the designs created by this wonderful group of illustrators 🕊️❤️ @melissa.castrillon @evaeland @sarahdyer_illustrator @ed_vere @flavia_zdrago @brunice @ehud.neuhaus @mauri.mendes @_beckypalmer @deenface and @yufrukt

All printed in Amsterdam by the Riso Wizard that is @evaeland ❤️

Please, help us raise as much money as possible so we can help vital organizations that are working on the ground in Gaza. There are great prints to purchase, digital downloads ( and the option of simply donating a bit of money, every donation helps) and even if you can’t donate, please help us spread the word. Share our link ❤️❤️❤️

Rise.Raise.Riso is a group of 12 illustrators offering original Riso prints to raise awareness and funds for organisations and individuals doing vital work to support and stand in solidarity with persecuted and vulnerable people around the world.

Last year we raised £10.000 for Medical Aid Palestine. Our second fundraiser is dedicated to three different on the ground organizations : Al-Jawad (@jawadcamp1), Gaza Little Lights (@gazalittlelights), and Grassroots Gaza (@grassroots_gaza) which are all Palestinian led initiatives that focus on supporting children and families in Gaza with direct aid.

100% of the profits of every sale will go to the organisations mentioned above. Help us reach our goal of raising as much as we can and support these vital organisations.

Again, lost for words on the current situation… 💔 gone to marches, spoken up here, donated and raised money… it all feels a bit helpless. 💔 but we keep trying 🕊️ This is the image I created specially for @rise.raise.riso ❤️ Check the link on my bio or @rise.raise.riso profile to see all the designs created by this wonderful group of illustrators 🕊️❤️ @melissa.castrillon @evaeland @sarahdyer_illustrator @ed_vere @flavia_zdrago @brunice @ehud.neuhaus @mauri.mendes @_beckypalmer @deenface and @yufrukt

All printed in Amsterdam by the Riso Wizard that is @evaeland ❤️

Please, help us raise as much money as possible so we can help vital organizations that are working on the ground in Gaza. There are great prints to purchase, digital downloads ( and the option of simply donating a bit of money, every donation helps) and even if you can’t donate, please help us spread the word. Share our link ❤️❤️❤️

Rise.Raise.Riso is a group of 12 illustrators offering original Riso prints to raise awareness and funds for organisations and individuals doing vital work to support and stand in solidarity with persecuted and vulnerable people around the world.

Last year we raised £10.000 for Medical Aid Palestine. Our second fundraiser is dedicated to three different on the ground organizations : Al-Jawad (@jawadcamp1), Gaza Little Lights (@gazalittlelights), and Grassroots Gaza (@grassroots_gaza) which are all Palestinian led initiatives that focus on supporting children and families in Gaza with direct aid.

100% of the profits of every sale will go to the organisations mentioned above. Help us reach our goal of raising as much as we can and support these vital organisations.

10 years between these two books 🥹💚#littlemonkeybook #bigtigerbook #kidlitart #martaaltes

10 years between these two books 🥹💚#littlemonkeybook #bigtigerbook #kidlitart #martaaltes

10 years between these two books 🥹💚#littlemonkeybook #bigtigerbook #kidlitart #martaaltes

10 years between these two books 🥹💚#littlemonkeybook #bigtigerbook #kidlitart #martaaltes

From 2021 when I was working on one of the spreads of Joan Miró’s biography. Drawing tiiiiiiny people ✨ #elllargviatgedejoanmiro #gemmagallardo #martaaltes

From 2021 when I was working on one of the spreads of Joan Miró’s biography. Drawing tiiiiiiny people ✨ #elllargviatgedejoanmiro #gemmagallardo #martaaltes

YESSS!! Finally! BIG TIGER first copy is here (I got the coeds before the original book in English last week!)😬💚🐅 I couldn’t be happier with the result 🥹 and cannot wait to share more about it in less than 2 months! It’s out on the 9th of July!!! 💚 published by @macmillankidsuk big thanks to @fordejm and @lornascobie #bigtigerbook #martaaltes #kidlitart

HIDE AND SEEK DADDY delivered!! Phew! 😬 and it’s another funny one (I think) here’s a little sneak peek. Quite funny A LOT of dads we know seem to hide in the same place. Can you guess? 😂 #hideandseekmommy #martaaltes #hideandseekbook #lifttheflapbook #kidlitart

Exciting post! just got copies of first coeds for #bigtigerbook 🐅🌿 Spanish and Catalan will be published by @blackielittle
Greek will be published by @keybooks_kids

HIDE-AND-SEEK SANTA COVER REVEAL! 😬❤️ I can finally share the second book in this series. Still a long time for Christmas but it’s been available to preorder for a couple of months now, and the cover is already out there, so I thought I’d share it here too! 🥰Very proud of this funny book that again I hope makes kids and their families smile. Once more, such a pleasure working with @mo.mundy and @melissanelsongreenberg and the whole team at @abramskids @abramschronicle ❤️ feeling very happy to be working together 🥰 @sallyanne_s @internationalcreativeagency #hideandseeksanta#martaaltes #santabook #christmasbook

Final from rough from one of my favourite spreads from #hideandseekmommy 😊❤️ A part from being available in the US and the UK, I’m very happy to know it’ll also be published in Spanish, Catalan and Italian!! @abramskids @abramschronicle @sallyanne_s @internationalcreativeagency #martaaltes #motherhood #playinghideandseekwithmommy #momshiding

Final from rough from one of my favourite spreads from #hideandseekmommy 😊❤️ A part from being available in the US and the UK, I’m very happy to know it’ll also be published in Spanish, Catalan and Italian!! @abramskids @abramschronicle @sallyanne_s @internationalcreativeagency #martaaltes #motherhood #playinghideandseekwithmommy #momshiding

Final from rough from one of my favourite spreads from #hideandseekmommy 😊❤️ A part from being available in the US and the UK, I’m very happy to know it’ll also be published in Spanish, Catalan and Italian!! @abramskids @abramschronicle @sallyanne_s @internationalcreativeagency #martaaltes #motherhood #playinghideandseekwithmommy #momshiding

Molt contenta d’haver pogut participar a la celebració de Sant Jordique va organitzar l’ Escola Catalana de Londres el passat diumenge 🥹❤️ moltíssimes gràcies Clara!
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Very happy to have celebrated Sant Jordi 🌹🐲 with @escolacatlon last Sunday 🥰 it’s such a special day for me and it felt so Good to be able to celebrate being away from home

Molt contenta d’haver pogut participar a la celebració de Sant Jordique va organitzar l’ Escola Catalana de Londres el passat diumenge 🥹❤️ moltíssimes gràcies Clara!
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Very happy to have celebrated Sant Jordi 🌹🐲 with @escolacatlon last Sunday 🥰 it’s such a special day for me and it felt so Good to be able to celebrate being away from home

Molt contenta d’haver pogut participar a la celebració de Sant Jordique va organitzar l’ Escola Catalana de Londres el passat diumenge 🥹❤️ moltíssimes gràcies Clara!
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Very happy to have celebrated Sant Jordi 🌹🐲 with @escolacatlon last Sunday 🥰 it’s such a special day for me and it felt so Good to be able to celebrate being away from home

If we play vets with my little croqueta, I truly commit to my injured cat role 🐈‍⬛